Meaning:
1) to be had for next to nothing; common enough to be worthless
2) An expression used to describe something or someone as generic or easy to find.
3) An expression used to describe something or someone as generic or easy to find.
Use:
1) She said, “Don’t let it go to your head. Boys like you are a dime a dozen.”
2) “Jobs at fast food restaurants are a dime a dozen these days.”
3) Bad teachers are a dime a dozen in most high schools in Los Angeles.