comer

UK: /ˈkʌmə^r/ US: /ˈkʌmɚ/ ,(kum′ər)

WordReference Random House Learner's Dictionary of American English © 2025

com•er /ˈkʌmɚ/   n. [countable]

1. Informal Terms a person or thing that is progressing well or is very promising:
   That writer is a real comer and has a great future.

WordReference Random House Unabridged Dictionary of American English © 2025

com•er  (kum′ər), n. 

1. Informal Terms a person or thing that is progressing well or is very promising:
   He looks like a comer in state politics.
2. a person or thing that arrives.

• 1325–75; Middle English; see come, -er¹

Collins Concise English Dictionary © HarperCollins Publishers::

comer / ˈkʌmə/ noun

1. (in combination) a person who comes: all-comers, newcomers
2. a potential success