What is opener?

"Opener" can refer to several different things, so here are a few possibilities:

1. In a general sense, an opener is something that gets a task or activity started. For example, an "opener" might be a joke that a comedian tells at the beginning of their show, or a warm-up exercise that an athlete does before a game.

2. In the context of a can or bottle, an opener is a device used to remove the lid or cap and access the contents inside. There are many types of openers, including can openers, bottle openers, wine openers, and more.

3. In a romantic context, an opener is the first thing that a person says or does to initiate a conversation or express interest in someone else. This might be something as simple as saying "hello" or complimenting the other person.

4. "Opener" can also refer specifically to the first pitch thrown by a baseball pitcher in a game. This pitch is often seen as an opportunity to set the tone for the game and establish the pitcher's presence on the mound.