dog tag

noun

1. a small disk or strip attached to a dog's harness or collar stating owner, home, etc.

2. identification tag.

3. Informal.

   1. any tag for a suitcase, camera, or other personal possession with the owner's name or address.

   2. a tag or card with a person's name or affiliation, worn at conventions, large meetings, etc.

dog tag

noun

1. slang,  a military personal-identification disc

Word History and Origins

Origin of dog tag¹

First recorded in 1915–20

Related Words

• description 
• passport 
• recognition 
• testimony