If you have an intimate friendship with someone, you know them very well and like them a lot.

If two people are in an intimate relationship, they are involved with each other in a loving or sexual way.

An intimate conversation or detail, for example, is very personal and private.

If you use intimate to describe an occasion or the atmosphere of a place, you like it because it is quiet and pleasant, and seems suitable for close conversations between friends.

An intimate connection between ideas or organizations, for example, is a very strong link between them.

An intimate knowledge of something is a deep and detailed knowledge of it.

If you intimate something, you say it in an indirect way.