A rite of passage through the survival or success of a crisis or ordeal.

Individually in succession; one at a time.

(set phrase, focus) mostly, generally; with few exceptions

A person who is passing by (that is, walking past).

plural of passer-by

(derogatory, obsolete) A dependent; a hanger-on.

(automotive) In an internal combustion engine, any burnt or unburnt matter escaping from the cylinder, past the (worn) rings on the piston, and into the crankcase.

(transitive and intransitive, of music) To play guided by one's musical ear, rather than from a written score.

(idiomatic) barely; closely; by a narrow margin; with nothing to spare.

(nautical) Keeping the sails full and steering by the wind.