5
ground(verb, drop, cause, crush, rise)
5
iron(verb, move, hold, calm, quiet)
5
knock(verb, hit, strike, bump, bang)
5
knock out(verb, phrasal verb)
5
planish(verb, fix, smooth, level, straight)
5
pulverize(verb, remove, ruin, destroy, smooth)
5
put down(verb, expression, phrasal verb, press, crush)
5
set straight(verb, fix, smooth, level, straight)
5
strike down(verb, expression, phrasal verb, drop, cause)
5
wreck(verb, remove, ruin, destroy, crush)
4
beat down(verb, expression, phrasal verb, crush, level)
4
break down(verb, expression, phrasal verb, destroy, level)
4
correct(verb, fix, smooth, level, straight)
4
equalize(verb, smooth, match, balance, flush)
4
fix(verb, smooth, level, straight)
4
knock over(verb, expression, phrasal verb, drop, slip)
4
level off(verb, phrasal verb, become flatter)
4
mow(verb, smooth, kill, shoot, slaughter)
4
mow down(verb, expression, phrasal verb, drop, destroy)
4
plaster(verb, crush, level, squash, compress)
10 years ago|9.1k views|share |citing 
APASmart Define. (2015). flatten thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/flatten/thesaurus/synonyms
ChicagoSmart Define. 2015. "flatten thesaurus" https://smartdefine.org/flatten/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flatten thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flatten/thesaurus/synonyms>.
MLASmart Define. "flatten thesaurus" 5 November 2015. Web. 20 September 2026. <https://smartdefine.org/flatten/thesaurus/synonyms>