a noun is a part of speech that pertains to a person, place, thing, quality, or idea. In the case of the word 'week,' it is used to refer to a period of seven days. It is important to note that the word 'week' can function both as a singular or a plural noun, depending on the context.
1. I have been saving my pocket money all week.
2. I usually like to take a break from work every two weeks.
3. Last week, I took a family trip to the coast.