s a noun, 'close' is less commonly used but can refer to the end or conclusion of something. In British English, it can also refer to a short street or a courtyard.
At the close of the day, they tallied up their earnings.
The play came to a dramatic close.
They live at the close just around the corner.
in the context of a street or courtyard, 'close' is more common in British English and might be unfamiliar to American English speakers.
as an adjective, 'close' describes something that is near in space, time, or relationship. It can also refer to something that is tightly compressed or shut.
They have a close relationship.
We are close friends.
don't confuse 'close' (near) with 'closed' (shut). For example 'The shop is close' (nearby) vs. 'The shop is closed' (not open).
as a verb, 'close' refers to the action of moving so that an opening or passage is obstructed; shutting. It can also mean to bring something to an end or to complete something.
Please close the door behind you.
The store will close at 9 PM tonight.
She closed the deal with a firm handshake.
'close' can be used in phrasal verbs like 'close down' (to cease operations) or 'close in on' (to approach or surround).
as an adverb, 'close' describes doing something in close proximity or in a manner that is near to something.
He stood close, watching her every move.
The arrow missed the target but landed close.
They followed close behind us.
the adverbial form of 'close' often emphasizes proximity or nearness in terms of distance or relationship.