verb
1.
Synonyms: even 1, flush, lay, level, plane, smooth, smoothen
2.
Synonyms: fell 1, bring down, down, floor, ground, knock down, lay low, level, mow (down), prostrate
FLATTEN
Meaning of FLATTEN in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003