opener

Meanings

1. A person who opens something.
2. A device that opens something; specifically a tin-opener/can-opener, or a bottle opener.
3. An establishment that opens.
4. The player who starts the betting.
5. Cards of sufficient value to enable a player to open the betting.
6. A person employed to separate sheets of hot metal that become stuck together.
7. The first act in a variety show or concert.
8. A batsman or bowler who normally plays in the first two positions of an innings.
9. The first in a series of events, items etc.; the first remark or sentence of a conversation.
10. The first game played in a competition.
11. A opening goal.
12. A period of time when it is legal to commercially fish.

1. comparative form of open: more open

Etymology

From Middle English oppinnare, opynnare, from Old English openere, equivalent to open + -er (suffix forming agent nouns).