1. a person who makes a telephone call
2. a person who visits someone
3. a person who calls out instructions at a square dance or similar event

Examples

• The caller hung up before I could answer.
• Please hold while I transfer you to another caller.
• We had several callers at the house today.
• The unexpected caller knocked on our door at midnight.
• The square dance caller shouted instructions to the dancers.
• She worked as a caller at the local community center.
• The caller ID showed an unknown number.