saturday

Sat‧ur‧day /ˈsætədi, -deɪ $ -ər-/ BrE AmE noun [uncountable and countable] (written abbreviation Sat.)
[Date: 800-900; Origin: Translation of Latin Saturni dies 'day of Saturn']
the day between Friday and Sunday
on Saturday
We went for a picnic on Saturday.
The festivities begin Saturday. American English
Saturday morning/afternoon etc
They arrived in Paris on Saturday evening.
last Saturday
I saw Sally last Saturday at the mall.
this Saturday
What are you doing this Saturday?
next Saturday (=Saturday of next week)
Ask her yourself next Saturday.
a Saturday (=one of the Saturdays in the year)
It was a crazy idea to go to the store on a Saturday.

Oxford Advanced Learner's Dictionary

Saturday

Sat·ur·day [Saturday Saturdays] [ˈsætədeɪ] [ˈsætərdeɪ] [ˈsætədi] [ˈsætərdi] noun countable, uncountable (abbr. Sat.)

the day of the week after Friday and before Sunday To see how Saturday is used, look at the examples at Monday. From the Old English for ‘day of Saturn’, translated from Latin Saturni dies.

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

Saturday / ˈsæt.ə.deɪ / / ˈsæt̬.ɚ- / noun [ C or U ] ( written abbreviation Sat. )

A1 the day of the week after Friday and before Sunday:

He's leaving on Saturday.

Most football matches are played on Saturdays.

The party is next Saturday.

We went out for a lovely meal last Saturday.

Joel was born on a Saturday.

Saturday morning/afternoon/evening/night

Collins COBUILD Advanced Learner’s English Dictionary

Saturday

/sætə(r)deɪ, -di/
(Saturdays)

Saturday is the day after Friday and before Sunday.
She had a call from him on Saturday morning at the studio...
Every Saturday dad made a beautiful pea and ham soup...
The overnight train runs every night of the week except Saturdays.

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

Saturday

Sat·ur·day /ˈsætɚˌdeɪ/ noun, pl -days : the day of the week between Friday and Sunday

[count]

• They left last Saturday.
• He will arrive next/this Saturday.
• His birthday falls on a Saturday this year.
• (Brit) He will arrive on the Saturday and leave on the Wednesday.
• The club meets on Saturdays. = The club meets every Saturday.

[noncount]

• I will arrive on Saturday. = (chiefly US) I will arrive Saturday.
- abbr. Sat.;
- Sat·ur·days /ˈsætɚˌdeɪz/ adv
• He visits his parents Saturdays. [=he visits his parents every Saturday]