who

(archaic, idiomatic) who is this?

(idiomatic) used when the speaker considers someone's actions, especially those of a rich or influential person, to be irrational or arbitrary

(idiomatic) first come, first served

(idiomatic) sow the wind, reap the whirlwind

(idiomatic) There's a million dollars for whoever...; used to indicate that something is very hard or impossible to do

(idiomatic) Alternative form of kto mieczem wojuje, ten od miecza ginie

(idiomatic) early to bed, early to rise, makes a man healthy, wealthy and wise, the early bird gets the worm

(idiomatic) no pain, no gain

(idiomatic) live by the sword, die by the sword (one who uses violence can expect a violent response)