Opener

avaaja

(device that opens something)

avaus

(first in a series of events)

avauskortti

(openers: cards of sufficient value to enable a player to open the betting)

avausnumero

(first act in a variety show)

pelinavaaja

(player who starts the betting)

pelinavaaja

(batsman or bowler who normally plays in the first two positions of an innings)