📖 general

to know something very thoroughly or completely

to have no limits or restrictions

to not know someone at all, often used to indicate a lack of acquaintance

to not know someone at all, similar to 'know someone from Adam'

to have no familiarity or connection with someone

to have complete knowledge or understanding of a subject

to be familiar with the procedures or routine of a situation

to be aware of the situation or the facts, especially in a difficult or challenging context

to be aware of the hidden truths or secrets in a situation, especially those that could be damaging or controversial

to be aware of the current situation or trends to make informed decisions

A state of sleep or dreaming.

Remarkable or exaggerated in personality or presence.