(idiomatic) I don't understand any of it; it makes no sense.

(before the noun, idiomatic) Current; recent; the latest. / (idiomatic) Informed about the latest news or developments; abreast.

(idiomatic) by the way; now that I think about it; indicates something brought to mind.

(idiomatic, obsolete) Used to form idioms meaning "to force someone to work hard or to focus intensely upon their work".

(idiomatic) Hard at work.

tending to permit, allow, understand, or accept something / tending to withstand or survive

Rich, prosperous, financially stable and comfortable.

(idiomatic, chiefly in the negative) To tell an expert how to do things.

(US, slang, rare) To do something that is impossible or very difficult, with connotations of pointlessness.

To reach by moving down or reducing. / (idiomatic) To entirely depend upon a single factor; basically, ultimately or in essence.