They have a small mouth. vs They have small mouths.

Both phrases are correct, but they're used in different contexts. 'They have a small mouth.' is used when referring to a person who has a small mouth. On the other hand, 'They have small mouths.' is used when referring to multiple people, each with a small mouth.

Explained by Miss E.
Editor at TextRanch

Last updated: March 10, 2025 • 5667 views

This phrase is correct when referring to a single person who has a small mouth.

"They have a small mouth."

This phrase is used when talking about one individual who has a small mouth.

Examples:

She has a small mouth, so she prefers to eat small bites of food.
He has a small mouth, which makes it difficult for him to pronounce certain words.

Show examples from the web [+]

And I'm unreasonably small mouth opening girl.
I have a round face, I have narrow, green brown eyes, a wide, short nose and a small, full lipped mouth.
Lt. Verraterkuss leaves small mouths behind to feed.
[Narrator] The pig had a vague memory that shiny tubes produced food, and guessed that some quite unexpected surprise... would come out of two small round mouths.
Sometimes they have a small room vacant in the annex.
"seven small explosions in your mouth."
They have a small apartment in Greenwich Village, but... he has sent her to the the other side of river.
The four boys left... they have a small hut the lake behind the hill.
They have a small, electroc portable beacon that they can have over here in ten minutes.
They also recovered a small children's toy block that was in his mouth.
Someone with a small mouth and good hair...
I have a small problem... which I suspect this gathering might find interesting.
I have a small social circle.
We have a small logic question.
We have a small window to gain control of our cyber intruder.
I have a small object for you.
Excuse me. I have a small Twitter emergency.
We have a small window of opportunity to make an impact.
Also you have a small Latino boy hanging from the second story window.
I do have a small knife I use to sharpen my stylus.

Alternatives:

He has a small mouth.
She has a tiny mouth.
His mouth is small.
Her mouth is petite.
Their mouth is small.

This phrase is correct when referring to multiple people, each with a small mouth.

"They have small mouths."

This phrase is used when talking about a group of individuals, each of whom has a small mouth.

Examples:

The children have small mouths, so they find it hard to eat large sandwiches.
In the family, they all have small mouths except for the youngest sibling.

Show examples from the web [+]

And I'm unreasonably small mouth opening girl.
Lt. Verraterkuss leaves small mouths behind to feed.
[Narrator] The pig had a vague memory that shiny tubes produced food, and guessed that some quite unexpected surprise... would come out of two small round mouths.
"seven small explosions in your mouth."
I have a round face, I have narrow, green brown eyes, a wide, short nose and a small, full lipped mouth.
Kids these days... they have such foul mouths.
And if they have small children, the scare tactics work even better.
Well, try and speed it up, 'cause in my experience, my parents fight less when they have food in their mouths.
The victims' cars were found about two miles from each other, and they have similar mutilation around their mouths.
They also recovered a small children's toy block that was in his mouth.
These toys are squeaky, soft and particularly fun for small children to play with, which means that they often put them in their mouths.
He throws them this small and they burn your mouth.
If they have small change, they're not our clientele.
These people are not holding out a begging bowl - they are only asking for recognition that they have small landowning democracies in countries which have human rights and which protect workers' rights.
Someone with a small mouth and good hair...
BL: These worms have no digestive system. They have no mouth.
The European Union cannot add insult to that injury by saying that it is not its responsibility that they have a serious problem in the area of foot-and-mouth.
In reality only the girls have small fingers...
Something corroded the area around his mouth.
It means there's weakness around the mouth.

Alternatives:

They all have small mouths.
Their mouths are small.
Each of them has a small mouth.
All of them have small mouths.
Their mouths are tiny.

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They have a small mouth. vs They have small mouths.

"They have a small mouth."

"They have small mouths."

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