12-letter words that end in mer
- up-and-comer — likely to succeed; bright and industrious: an up-and-coming young executive.
- water hammer — the concussion and accompanying noise that result when a volume of water moving in a pipe suddenly stops or loses momentum.
- weisenheimer — a wiseacre or smart aleck.
- yellowhammer — a common European bunting, Emberiza citrinella, the male of which is marked with bright yellow.