- to make flat or flatter
- Informal to knock down; make prostrate
- to level to the ground
- to become flat or flatter
- to become prostrate
- to make or become flat or flatter by spreading out
- Aeron. level off (sense ) (at level)
verbflat·tened, flat·ten·ing, flat·tens
- To make flat or flatter.
- To knock down; lay low: The boxer was flattened with one punch.
(third-person singular simple present flattens, present participle flattening, simple past and past participle flattened)
- To make something flat or flatter.
- As there was a lot of damage, we chose the heavy roller to flatten the pitch.
- Mary would flatten the dough before rolling it into pretzels.
- (reflexive) To press one's body tightly against a surface, such as a wall or floor, especially in order to avoid being seen or harmed.
- To knock down or lay low.
- The prize fighter quickly flattened his challenger.
- (intransitive) To become flat or flatter.
- (intransitive) To be knocked down or laid low.
- (music) To lower by a semitone.
- To make vapid or insipid; to render stale.
- (computer graphics) To combine (separate layers) into a single image.