(transitive) to open / (transitive) to begin, to initiate / (reflexive) to open (of a door or a flower) / (reflexive) to open, to begin

(transitive) to open completely

(transitive with sur) to open fire

(transitive with sur) (informal, figuratively) to wake up to (something), to wake up and smell the coffee / (transitive with à and with sur) (informal, figuratively) to open someone's eyes to (something)

open the ball (to begin operations; to set things in motion)

(transitive with à) (figuratively) to pave the way for, to blaze the trail for

(sports) to break the deadlock (to score the first goal in a match)

to lead the way

(figuratively) to open the ball (to begin operations; to set things in motion)

(of a business or an organization) to open its doors for the first time, to open its doors to the public, to begin operating