flatten
1. [ verb ] make flat or flatter
Examples:

"flatten a road", "flatten your stomach with these exercises"

Related terms: shape roll_out laminate steamroll splat
2. [ verb ] become flat or flatter
Synonyms: flatten_out
Examples:

"The landscape flattened"

Related terms: change_shape press splat
3. [ verb ] (music) lower the pitch of (musical notes)
Synonyms: drop
Related terms: sharpen change music
Similar spelling:   Flaten
  flattened
  fly_tent
  floating
  flatmate
  fluting
  Flodden
  flatness