(colloquial) Not worth the time or effort.

Alternative form of not worth the powder

(idiomatic) To be rare, not abundant, not easily gained.

(formal) Do not be afraid.

used to add something to what has already been said.

(obsolete) A violent and peremptory procedure without any assigned reason; a sudden conclusive happening.

Used other than figuratively or idiomatically: see not, long. / (UK) Fairly recently.

(informal, usually humorous) Used as a reply to see you, see you later, see you soon etc., implying that if the speaker sees the interlocutor first then the speaker will avoid the interlocutor.

Many problems are happening simultaneously or in close succession.

Understanding cannot be forced on someone who chooses to be ignorant.