British English

thir·ti·eth [thirtieth thirtieths] [ˈθɜːtiəθ] ; [ˈθɜːrtiəθ] ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.

Main entry: thirty_derived

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

thirtieth / ˈθɜː.ti.əθ / / ˈθɝː.t̬i- / ordinal number

30th written as a word

Collins COBUILD Advanced Learner’s English Dictionary

thirtieth

[θɜ͟ː(r)tiəθ]
♦♦
ORD
The thirtieth item in a series is the one that you count as number thirty.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

thirty

thir·ty /ˈɵɚti/ noun, pl -ties
1 [count] : the number 30
2 thirties [plural]
a : the numbers ranging from 30 to 39
• The temperature outside is in the high thirties.
b : a set of years ending in digits ranging from 30 to 39
• He is in his thirties.
• old photographs from the thirties [=from 1930–1939]
- thir·ti·eth /ˈɵɚtijəɵ/ noun, pl -tieths [count]
• the thirtieth of November
• seven thirtieths of a degree
- thirtieth adj
• her thirtieth birthday
- thirty adj
• thirty days/dollars
- thirty pronoun
• thirty of his classmates
- thir·ty·ish /ˈɵɚtijɪʃ/ adj
• He was tall, thirtyish [=about 30 years old], and had glasses and brown hair.

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twenty-first

twenty-first [ordinal number]

21st written as a word

Example:

the twenty-first century

21st written as a word

Persian equivalent:

Click here.

Example:

the twenty-first century

Theme, CEFR level & Tags

Level:

A2 (Elementary)

Region:

American English

British English

Longman Dictionary of Contemporary English

twenty-first

ˌtwenty-ˈfirst BrE AmE noun [countable usually singular]
your twenty-first ↑birthday or the celebration you have for it

Oxford Advanced Learner's Dictionary

twenty-first

ˌtwenty-ˈfirst [twenty-first] noun singular (informal, especially BrE)
a person's 21st birthday and the celebrations for this occasion
• She's having a party on her twenty-first.

• His parents gave him a car for his twenty-first.

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

ˌ twenty- ˈ first / ˌtwen.tiˈfɜːst / / -t̬iˈfɝːst / ordinal number

21st written as a word:

the twenty-first century

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twentieth

twentieth [ordinal number]

US

/ˈtwen·ti·ɪθ/

Example:

طبقه بیستم

20th written as a word

Persian equivalent:

Click here.

Example:

the twentieth floor

Theme, CEFR level & Tags

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Level:

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Oxford Essential Dictionary

twentieth

adjective, adverb, pronoun
20th

Longman Dictionary of Contemporary English

twentieth

See main entry: twenty

Oxford Advanced Learner's Dictionary

twentieth

twen·ti·eth [twentieth twentieths] [ˈtwentiəθ] ; [ˈtwentiəθ] ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.

Main entry: twenty_derived

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

twentieth / ˈtwen.ti.əθ / / -t̬i- / ordinal number

20th written as a word

Collins COBUILD Advanced Learner’s English Dictionary

twentieth

[twe̱ntiəθ]
♦♦
twentieths
1) ORD The twentieth item in a series is the one that you count as number twenty.
...the twentieth century.
2) FRACTION A twentieth is one of twenty equal parts of something.
A few twentieths of a gram can be critical.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

twenty

twen·ty /ˈtwɛnti/ noun, pl -ties
1 [count] : the number 20
2 [count] : the 20th in a set or series
• item/question twenty
3 twenties [plural]
a : the numbers ranging from 20 to 29
• Tomorrow the temperature will be in the low twenties.
b : a set of years ending in digits ranging from 20 to 29
• She's in her twenties.
• the gangsters of the twenties [=of the 1920s]
4 [count]
a US : a twenty-dollar bill
• All I have is a twenty.
b Brit : a twenty-pound note
- twen·ti·eth /ˈtwɛntijəɵ/ noun, pl -eths [count]
• What are you doing on the twentieth? [=the twentieth day of the month]
• a twentieth of the population
- twentieth adj
• their twentieth anniversary
- twenty adj
• It was a twenty-hour flight.
• twenty days later
- twenty pronoun
• Only twenty showed up for the review session.
• We spent forty dollars and had twenty left.

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thirteenth

thirteenth [ordinal number]

US

/ˌθɜrtˈtinθ/

Example:

the thirteenth day

13th written as a word

Persian equivalent:

Click here.

Example:

the thirteenth day

Theme, CEFR level & Tags

Theme:

Level:

Region:

Longman Dictionary of Contemporary English

thirteenth

See main entry: thirteen

Oxford Advanced Learner's Dictionary

thirteenth

thir·teenth [ˌθɜːˈtiːnθ] ; [ˌθɜːrˈtiːnθ] ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.

Main entry: thirteen_derived

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

thirteenth / θɜːˈtiːnθ / / θɝː- / ordinal number

13th written as a word:

My birthday is on the thirteenth ( of October).

Collins COBUILD Advanced Learner’s English Dictionary

thirteenth

[θɜ͟ː(r)ti͟ːnθ]
♦♦
ORD
The thirteenth item in a series is the one that you count as number thirteen.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

thirteen

thir·teen /ˌɵɚˈtiːn/ noun, pl -teens [count] : the number 13
- thirteen adj
• thirteen students
- thirteen pronoun
• All thirteen (of them) passed the exam.
- thir·teenth /ˌɵɚˈtiːnɵ/ noun, pl -teenths [count]
• the thirteenth of October
• one thirteenth of the budget
- thirteenth adj
• the thirteenth caller
- thirteenth adv
• She finished thirteenth.
• the nation's thirteenth largest city

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twelfth

twelfth [ordinal number]

US

/twelfθ/

Example:

the twelfth grade

12th written as a word

Persian equivalent:

Click here.

Example:

the twelfth grade

Theme, CEFR level & Tags

Theme:

Level:

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Oxford Essential Dictionary

twelfth

adjective, adverb, pronoun
12th

Longman Dictionary of Contemporary English

twelfth

I. twelfth /twelfθ/ BrE AmE noun [countable]
[Language: Old English; Origin: twelfta, from twelf; ⇨ ↑twelve]
one of twelve equal parts of something

Oxford Advanced Learner's Dictionary

twelfth

twelfth [twelfth twelfths] [twelfθ] ; [twelfθ] ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.

Main entry: twelve_derived

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

twelfth / twelfθ / ordinal number

12th written as a word:

Our next meeting is on the twelfth ( of May).

Collins COBUILD Advanced Learner’s English Dictionary

twelfth

[twe̱lfθ]
♦♦
twelfths
1) ORD The twelfth item in a series is the one that you count as number twelve.
  ...the twelfth anniversary of the April revolution.
  ...a twelfth-century church.
2) FRACTION A twelfth is one of twelve equal parts of something.
  She is entitled to a twelfth of the cash.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

twelfth

²twelfth adj : occupying the number 12 position in a series
• the twelfth day in a row
• finished in twelfth place
- twelfth adv
• Our son finished twelfth in the race.
• the twelfth best-selling book

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eleventh

eleventh [ordinal number]

US

/ɪˈlev·ənθ/

Example:

the eleventh person

11th written as a word

Persian equivalent:

Click here.

Example:

the eleventh person

Theme, CEFR level & Tags

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Longman Dictionary of Contemporary English

eleventh

I. e‧lev‧enth¹ /ɪˈlevənθ/ BrE AmE adjective

1. coming after ten other things in a series:

in the eleventh century

her eleventh birthday

2. the eleventh hour the last moment before something important happens:

At the eleventh hour the government decided that something had to be done.

—eleventh pronoun:

I’m planning to leave on the eleventh (=the 11th day of the month).

Oxford Advanced Learner's Dictionary

eleventh

elev·enth [eleventh elevenths] [ɪˈlevnθ] ; [ɪˈlevnθ] ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.

Main entry: eleven_derived

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

eleventh / ɪˈlev. ə nθ / ordinal number

11th written as a word:

Her birthday is on the eleventh ( of this month).

Collins COBUILD Advanced Learner’s English Dictionary

eleventh

[ɪle̱v(ə)nθ]
♦♦
ORD
The eleventh item in a series is the one that you count as number eleven.
We were working on the eleventh floor.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

eleven

elev·en /ɪˈlɛvən/ noun, pl -ens
1 [count] : the number 11
2 [count] : the eleventh in a set or series
• page eleven
• item/question number eleven
3 [noncount] : eleven o'clock
• I got home last night at eleven.
- eleven adj
• eleven turtles
- eleven pronoun
• Eleven (of them) were absent from the ceremony.
- elev·enth /ɪˈlɛvənɵ/ noun, pl -enths [count]
• one eleventh of the total
- eleventh adj
• the eleventh person in line
- eleventh adv
• He finished eleventh in the race.

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tenth

tenth [ordinal number]

US

/tenθ/

Example:

the tenth person

coming after nine other things in a series

Persian equivalent:

Click here.

Example:

the tenth person

Theme, CEFR level & Tags

Theme:

Level:

Region:

Oxford Essential Dictionary

tenth

pronoun, adjective, adverb

1 10th

2 one of ten equal parts of something; 1/10

Longman Dictionary of Contemporary English

tenth

I. tenth¹ /tenθ/ BrE AmE adjective
coming after nine other things in a series:
in the tenth century
her tenth birthday
—tenth pronoun:
I’m planning to leave on the tenth (=the tenth day of the month).

Oxford Advanced Learner's Dictionary

tenth

tenth [tenth tenths] ordinal number, noun [tenθ] [tenθ]

ordinal number

10th There are examples of how to use ordinal numbers at the entry for fifth.

noun
each of ten equal parts of sth

see possession is nine tenths of the law at possession

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

tenth / tenθ / ordinal number

10th written as a word:

This is his tenth year of working for the company.

Our next meeting is on the tenth ( of April).

The team was/came tenth in the league.

Collins COBUILD Advanced Learner’s English Dictionary

tenth

[te̱nθ]
♦♦
tenths
1) ORD The tenth item in a series is the one that you count as number ten.
2) FRACTION A tenth is one of ten equal parts of something.
He finished three-tenths of a second behind Prost.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

tenth

²tenth adj : occupying the number ten position in a series
• This year is our tenth wedding anniversary.
• the tenth grade
- tenth adv
• the world's tenth largest country

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ninth

ninth [ordinal number]

US

/nɑɪnθ/

Example:

the ninth day

coming after eight other things in a series

Persian equivalent:

Click here.

Example:

the ninth day

Theme, CEFR level & Tags

Theme:

Level:

Region:

Longman Dictionary of Contemporary English

ninth

I. ninth¹ /naɪnθ/ BrE AmE adjective
coming after eight other things in a series:
in the ninth century
her ninth birthday
—ninth pronoun:
I’m planning to leave on the ninth (=ninth day of the month).

Oxford Advanced Learner's Dictionary

ninth

ninth [ninth ninths] ordinal number, noun [naɪnθ] [naɪnθ]

ordinal number

9th There are examples of how to use ordinal numbers at the entry for fifth.

noun

each of nine equal parts of sth

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

ninth / naɪnθ / ordinal number

A2 9th written as a word:

The ninth letter of the alphabet is I.

The school term ends on the ninth ( of July).

She was/came ninth in the national finals.

Collins COBUILD Advanced Learner’s English Dictionary

ninth

[na͟ɪnθ]
♦♦
ninths
1) ORD The ninth item in a series is the one that you count as number nine.
  ...January the ninth.
  ...students in the ninth grade.
  ...ninth century illustrated manuscripts.
2) FRACTION A ninth is one of nine equal parts of something.
  In Brussels the dollar rose by a ninth of a cent...
  What you see is only the tip. Eight ninths of it is under the sea.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

ninth

²ninth adj : occupying the number nine position in a series
• on the ninth day
• the book's ninth edition
• She's in (the) ninth grade at school.
- ninth adv
• He finished ninth in the race.
• the country's ninth largest city

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eighth

eighth [ordinal number]

US

/eɪtθ/

Example:

the eighth grade

coming after seven other things in a series

Persian equivalent:

Click here.

Example:

the eighth grade

Theme, CEFR level & Tags

Theme:

Level:

Region:

Oxford Essential Dictionary

eighth

pronoun, adjective, adverb, noun

1 8th

2 one of eight equal parts of something;

Longman Dictionary of Contemporary English

eighth

I. eighth¹ /eɪtθ/ BrE AmE adjective
coming after seven other things in a series:
in the eighth century
her eighth birthday
—eighth pronoun:
I’m planning to leave on the eighth (=the eighth day of the month).

Oxford Advanced Learner's Dictionary

eighth

eighth [eighth eighths] ordinal number, noun [eɪtθ] [eɪtθ]

ordinal number

8th There are examples of how to use ordinal numbers at the entry for fifth.

noun

each of eight equal parts of sth

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

eighth / eɪtθ / ordinal number

A2 8th written as a word:

He was/came eighth in the race.

Bob's birthday is on the eighth ( of June).

Collins COBUILD Advanced Learner’s English Dictionary

eighth

[e͟ɪtθ]
♦♦
eighths
1) ORD The eighth item in a series is the one that you count as number eight.
...the eighth prime minister of India.
2) FRACTION An eighth is one of eight equal parts of something.
The Kuban produces an eighth of Russia's grain, meat and milk.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

eighth

²eighth adj : occupying the number eight position in a series
• the eighth car in line
• the eighth edition
• Her son is in (the) eighth grade.
- eighth adv
• She finished eighth (in the race).

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seventh

seventh [ordinal number]

US

/ˈsev·ənθ/

Example:

the seventh class

coming after six other things in a series

Persian equivalent:

Click here.

Example:

the seventh class

Theme, CEFR level & Tags

Theme:

Level:

Region:

Oxford Essential Dictionary

seventh

adjective, adverb, noun

1 7th

2 one of seven equal parts of something; 1/7

Longman Dictionary of Contemporary English

seventh

I. sev‧enth¹ /ˈsevənθ/ BrE AmE adjective
1. coming after six other things in a series:
in the seventh century
her seventh birthday
2. be in seventh heaven informal to be extremely happy
—seventh pronoun:
I’m planning to leave on the seventh (=the seventh day of the month).

Oxford Advanced Learner's Dictionary

seventh

sev·enth [seventh sevenths] ordinal number, noun [ˈsevnθ] [ˈsevnθ]

ordinal number
7th There are examples of how to use ordinal numbers at the entry for fifth.

Idiom: in seventh heaven

noun

each of seven equal parts of sth

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

seventh / ˈsev. ə nθ / ordinal number

A2 7th written as a word:

It's the seventh ( of May) today.

Our team was/came seventh.

Collins COBUILD Advanced Learner’s English Dictionary

seventh

[se̱v(ə)nθ]
♦♦
sevenths
1) ORD The seventh item in a series is the one that you count as number seven.
I was the seventh child in the family. There were 11 of us altogether.
2) FRACTION A seventh is one of seven equal parts of something.
A million people died, a seventh of the population.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

seventh

²seventh adj : occupying the number seven position in a series
• on the seventh day
• the book's seventh edition
• her seventh goal of the season
• I finished in seventh place in the competition.
- seventh adv
• She finished seventh in the race.
• the nation's seventh largest city

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