3
gloss(verb, set, cover, clear, increase)
3
grind(verb, hurt, smooth, crush, squash)
3
improve(verb, fix, smooth, level, straight)
3
iron out(verb, expression, phrasal verb, press, crush)
3
lay waste(verb, expression, destroy, level, demolish)
3
polish(verb, clear, press, smooth, level)
3
right(verb, fix, smooth, level, straight)
3
set right(verb, fix, smooth, level, straight)
3
shatter(verb, destroy, explode)
3
slick(verb, clear, press, smooth, level)
3
smooth down(verb, expression, phrasal verb, straighten, rectify)
3
spread(verb, open, release, free, display)
3
square(verb, fix, smooth, level, straight)
3
subjugate(verb, press, crush, kill, shoot)
3
throw down(verb, expression, drop, destroy, kill)
3
trample down(verb, phrasal verb)
3
trounce(verb, thrash, annihilate)
3
true up(verb, fix, smooth, level, straight)
3
unfold(verb, set, cover, extend, spread)
3
untuck(verb, fix, smooth, level, straight)
10 years ago|9.1k views|share |citing 
APASmart Define. (2015). flatten thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/flatten/thesaurus/synonyms
ChicagoSmart Define. 2015. "flatten thesaurus" https://smartdefine.org/flatten/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, flatten thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/flatten/thesaurus/synonyms>.
MLASmart Define. "flatten thesaurus" 5 November 2015. Web. 21 September 2026. <https://smartdefine.org/flatten/thesaurus/synonyms>