…showing or suggesting that one has knowledge or awareness that is secret or known to only a few people…
…be aware of information or evidence to the contrary…
…be able to distinguish one person or thing from (another)…
…used to express one’s doubts about one’s ability to do something…
…things in which one is knowledgeable and experienced; one’s area of expertise…
…be wise or polite enough to avoid doing a particular thing…
…be experienced and competent in a particular area…
…be entirely familiar with something…
…with baffling speed…
…recognize someone by their appearance without knowing their name or being so well acquainted as to talk to them…
…be familiar with (an area, procedure, or subject)…
…be overconfident about one’s knowledge of something…
…used to convey that someone has an easy life without realizing how easy it is…
…be aware of something that is irrefutable or beyond doubt…
…be very shocked or surprised by a sudden attack or event…
…be sensible, self-possessed, and aware of how to deal with difficult situations…
…not know or be completely unable to recognize the person in question…
…feel great embarrassment and not know how to react…
…used to indicate that someone is ignorant or innocent…
…have sexual intercourse with someone…
…have not the slightest idea about (something)…
…be expert or authoritative on a particular subject…
…be totally ignorant or incompetent…
…be entirely familiar with a place or route…
…be confused, especially as a result of being very busy…
…be at a loss as to know what to do, typically through boredom, embarrassment, or anxiety…
…behave as if unaware of the concept referred to…
…know where one’s advantage lies…
