week S1 W1 /wiːk/ noun [countable]
[Word Family: noun: week, midweek, weekly; adverb: weekly, midweek; adjective: weekly, midweek]
[Language: Old English; Origin: wicu]

1. a period of seven days and nights, usually measured in Britain from Monday to Sunday and in the US from Sunday to Saturday
once/twice/three times etc a week
Letters were delivered twice a week only.
I can’t see you this week.
last/next week (=the week before or after this one)
See you next week.

2. any period of seven days and nights
for a week/two weeks etc
I’ve been living here for six weeks.
in a week/two weeks etc (=one, two etc weeks from now)
If he hasn’t phoned in a week, I’ll phone him.
It will cost you an estimated £10 per week to feed one dog.
The training program lasts three weeks.

3. the part of the week when you go to work, usually from Monday to Friday Synonym : working week:
a 35-hour week
during the week
I don’t see her during the week.

4. Monday week/Tuesday week etc British English a week after the day that is mentioned:
We’re off to Spain Sunday week.

5. a week on Monday etc British English, a week from Monday etc American English a week after the day that is mentioned:
The Reids are coming for dinner a week from Sunday.
Keith’s coming home two weeks on Saturday (=two weeks after next Saturday).

6. week after week (also week in week out) continuously for many weeks:
We do the same things week in week out.

[TahlilGaran] Dictionary of Contemporary English ▲

week
noun
ADJ. last, past | previous | coming, following, next | consecutive, successive They won 1?0 for the fourth consecutive week.
entire, full, whole It's the first time for ages I've done a full week's work.
working | busy, hard | quiet It's been a very quiet week for me.
3-day, 40-hour, etc. He earns enough money to work a four-day week.
VERB + WEEK spend We spent two weeks in France last summer.
take
WEEK + VERB elapse, go by, pass The week passed very slowly.
PREP. by the ~ They're paid by the week.
during/in the ~ I go out most weekends, but rarely during the week.
for a ~ I haven't seen him for weeks.
in a ~ We'll be back in a week.
in ~s It hasn't rained in weeks.
over/under a ~ It's over a week since she rang me.
per ~ How much do you earn per week?
within a/the ~ I'll have the report finished within the next couple of weeks.
PHRASES a day of the week Which day of the week was it?

[TahlilGaran] Collocations Dictionary ▲

week

this week
He’ll be in the office this week, so you should give him a call.
next week
The wedding is next week.
last week
Last week, my washing machine broke down.
the past week
Five soldiers were killed in the past week alone.
the previous week
She thought about what a colleague had said to her the previous week.
the following week
She booked another appointment for the following week.
a full/whole week (=every day in a week)
I can't believe we've been here a whole week already.
a day of the week
Friday is our busiest day of the week.

[TahlilGaran] Collocations Dictionary ▲

week
noun
BAD: We knew that a four weeks holiday would bring us closer together.
GOOD: We knew that a four-week holiday would bring us closer together.

Usage Note:
Using numbers
Day, month, minute, mile, kilo etc are always SINGULAR when used (with a number) immediately before a noun: ‘a six-minute wait’, ‘a ten-second silence’, ‘a five-mile race’.
My travel agent had arranged a 6-day coach tour.
The company provides a three-month training course.
Compare: ‘We waited for thirty minutes: ‘We had a thirty-minute wait.’
When you say 100, 1000 etc , or write these numbers in words, use a hundred, a thousand (WITH a ):
The palace was build a thousand years ago.
Compare: ‘The palace was built 1000 years ago.’
For emphasis or to be exact, it is possible to use one instead of a :
I am one hundred percent against the idea.
After a/one/five/twelve etc , the words hundred, thousand, etc are always SINGULAR and are NOT followed by of :
Five hundred children are born in the city every day.
More than three thousand people were there.
Similarly, of is NOT used after 100, 250, 3000 etc:
If you kill 200 whales a year, they will soon disappear.
Hundreds (of), thousands (of) etc are used only when you give a general idea of how many or how much: ‘There were hundreds of stars in the sky.’ ‘They’ve spent thousands (of pounds) on improvements to the house.’
Use and between hundred and the next number. (In American English, and is often omitted, especially in formal styles.)
BrE The club has about a hundred and thirty members.
AmE The club has about a hundred (and) thirty members.

[TahlilGaran] Dictionary of Common Errors ▲