Use this domain for words referring to knowing someone.
What words refer to knowing someone?
What words refer to knowing someone, but not knowing him well?
know someone by sight, be acquainted with, be acquaintances, don't know well, we've met,
What words refer to starting to know someone after you have met them?
get to know, get acquainted,
What words refer to someone you know, who is not a friend?
acquaintance, casual acquaintance
What words refer to knowing about someone, whom you have not met?
know someone's name, know of someone, have heard the name, have heard of someone, have heard about someone