1. [ noun ] the first event in a series

: "she played Chopin for her opener" "the season's opener was a game against the Yankees"

Related terms: start open
2. [ noun ] a person who unfastens or unwraps or opens
Synonyms: unfastener untier undoer

"children are talented undoers of their shoelaces"

Related terms: person open loosen unwrap
3. [ noun ] a hand tool used for opening sealed containers (bottles or cans)
Related terms: hand_tool bottle_opener latchstring can_opener open
Similar spelling:   openwork