1. a device or tool used to open something
2. the first event, performance, or game in a series
3. something that begins a conversation or activity

Examples

• She used a can opener to open the soup.
• The bottle opener was missing from the kitchen drawer.
• Tonight’s game is the season opener for our team.
• The concert opener was a local band.
• That joke was a great conversation opener.
• He needed a good opener for his presentation.
• The wine opener broke when he tried to remove the cork.