verb
- intransitive, reflexive, transitive to open, open up
- transitive to unlock
- transitive to turn on
- transitive to start, open, open up, set up (a business, restaurant, etc.)
- transitive to crack, crack open, to pop (e.g., a safe, a bottle, a coconut)
- transitive to break, break open, (new ground, a game, etc.); to break out (e.g., champagne); to breach
- transitive to spread (one's legs, arms, fingers)
- figuratively, transitive to answer (the door)
- pronominal to open up (to become communicative)
- reflexive, slang to leave, go away
- Latin America, reflexive to withdraw, back out of