(v. i.) To become or grow flat, even, depressed dull, vapid, spiritless, or depressed below pitch.
FLATTEN
Meaning of FLATTEN in English
Webster's English dictionary. Английский словарь Webster. 2012
(v. i.) To become or grow flat, even, depressed dull, vapid, spiritless, or depressed below pitch.
Webster's English dictionary. Английский словарь Webster. 2012