opener

Opener is a noun used to describe something that opens something else or initiates an activity. The term is applied across many domains, from physical tools to artistic and organizational roles.

In tools, an opener is a device designed to access sealed containers, such as a bottle opener, can opener, or box cutter. Specialty openers exist for industrial packaging and logistics.

In arts and entertainment, an opener is the opening act at a concert or event, and can refer to the opening track of a music album—a song chosen to start a record or set.

In sports and games, an opener denotes the first game or the initial move that starts a competition. Opening rounds and opening moves shape strategy and momentum.

In writing and journalism, the opener refers to the lead or opening sentence or paragraph that introduces the subject and sets the tone.

In computing, an opener is a utility or component that launches files or URLs, such as a file-open dialog or a program designed to handle a specific file type. Openers in software can help route content to the appropriate application or process.