to know about something
81know what's what — See: KNOW SOMETHING INSIDE OUT …
82be in the know — informal to know about something which most people do not know about. The resort is considered by those who are in the know to have the best downhill skiing in Europe …
83know something inside out — know (something) inside out informal to know everything about a subject. Why don t you ask Mike? He knows the system inside out …
84know the time of day — 1. To know the state of affairs, what is going on 2. To know what one is about, or the best way of doing something • • • Main Entry: ↑time …
85lose track of something — lose track (of (someone/something)) to no longer be informed or know about something or someone. I ve lost track of most of my college friends. Opposite of: keep track (of (someone/something)) …
86know sb by reputation — know sb/sth by reputation ► to know someone or something because of what people say about them, rather than by having direct experience of them: »He knew Hindman by reputation before interviewing him for the post. Main Entry: ↑reputation …
87know sb/sth by reputation — ► to know someone or something because of what people say about them, rather than by having direct experience of them: »He knew Hindman by reputation before interviewing him for the post. Main Entry: ↑reputation …
88know sth by reputation — know sb/sth by reputation ► to know someone or something because of what people say about them, rather than by having direct experience of them: »He knew Hindman by reputation before interviewing him for the post. Main Entry: ↑reputation …
89know inside out — know (something) inside out informal to know everything about a subject. Why don t you ask Mike? He knows the system inside out …
90know your stuff — know (your) stuff informal to know a lot about a subject, or to be very good at doing something. When it comes to restoring grand pianos, Mr Morley really knows his stuff …
