1 mouth /ˈmaʊθ/ noun
plural mouths /ˈmaʊðz/
1 mouth
plural mouths /ˈmaʊðz/
Learner's definition of MOUTH
: the opening through which food passes into the body : the part of the face that includes the lips and the opening behind them
[count] : an opening in something usually + of see also goal mouth
[count] : the place where a river enters the ocean
[singular] informal : an unpleasant or offensive way of talking
see also big mouth, loudmouth, smart-mouth

all mouth (and no trousers/action)

British, informal
used to describe someone who talks a lot about doing something but never actually does it

born with a silver spoon in your mouth

see born

butter wouldn't melt in someone's mouth

see 1butter

by word of mouth

see 1word

down in the mouth

: unhappy or depressed

foam at the mouth

see 2foam

from the horse's mouth

see 1horse

froth at the mouth

see 2froth

hand to mouth

see 1hand

heart in your mouth

see heart

keep your mouth shut

: to not say anything
: to not talk about something (such as a secret)

look a gift horse in the mouth

see 1horse

melt in your mouth

see 1melt

mouth to feed

: a person (such as a child) who needs to be fed

put words in/into someone's mouth

see 1word

put your foot in your mouth

see 1foot

put your money where your mouth is

see money

run your mouth

see 1run

shoot your mouth off

see 1shoot

shut your mouth

see 1shut

take the words right out of someone's mouth

see 1word
2 mouth /ˈmaʊð/ verb
mouths; mouthed; mouthing
2 mouth
mouths; mouthed; mouthing
Learner's definition of MOUTH
[+ object]
: to say or repeat (something) without really meaning it or understanding it
: to form (words) with your lips without speaking

mouth off

[phrasal verb] informal
: to talk in a loud, unpleasant, or rude way
Comments & Questions
Comments & Questions
What made you want to look up mouth? Include any comments and questions you have about this word.