132 entries under noun topic. ×

19
lip(verb, state, go, deliver)
15
aperture(open, thing, opening, breach)
15
opening(open, thing, opening, breach)
14
orifice(open, thing, beginning, opening)
12
sass(return, talk, insult, answer)
12
entrance(thing, beginning, opening)
12
inlet(beginning, opening, entrance, haven)
11
door(beginning, opening, breach, hole)
10
estuary(nature, opening, gulf lake)
10
gob
10
impudence(rudeness, insolence, sassiness, backtalk)
9
back talk(expression, idiom, return, rude)
9
grimace(verb, expression, express, contort)
9
insolence(return, insult, rudeness, disrespect)
9
impertinence(rudeness, disrespect, insolence, impudence)
8
trap(informal, opening)
8
vent(open, opening, breach, hole)
7
chops(beginning, opening, edge)
7
firth(nature, opening, arm, entrance)
7
gate(beginning, opening)
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APASmart Define. (2016). mouth thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mouth/thesaurus/synonyms
ChicagoSmart Define. 2016. "mouth thesaurus" https://smartdefine.org/mouth/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, mouth thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mouth/thesaurus/synonyms>.
MLASmart Define. "mouth thesaurus" 28 February 2016. Web. 29 September 2026. <https://smartdefine.org/mouth/thesaurus/synonyms>