(idiomatic) To watch and pay attention to, in case of misbehaviour or mishap.

(transitive, idiomatic) To persist or continue. / (intransitive, idiomatic) To persist in talking about a subject to the annoyance of the listener.

(medicine) Surgery using a fibre-optic laparoscope through a small incision, either for examination or treatment

An item carried on a key ring either as decoration or security.

To remember; to be mindful of or pay attention to.

(intransitive, nautical, also figuratively) Of a vessel: to roll so far on its side that it cannot recover; to capsize or turn turtle.

(music) A large hemispherical brass percussion instrument (one of the timpani) with a drumhead that can be tuned by adjusting its tension.

The hole in a lock where the key is inserted and turns. / Any small opening resembling the hole for a key in shape or function.

(firearms) To strike a target after wobbling in flight so that the long axis of the bullet does not follow the line of flight, typically due to insufficient spin resulting from the rifling in the barrel.

One of the two keys used in asymmetric cryptography, which is published to others, unlike the private key.