An arm vs a arm

The correct phrase is 'an arm.' The use of 'an' before a word starting with a vowel sound is a rule in English grammar. In this case, 'arm' starts with a vowel sound, so 'an' is used.

Last updated: March 26, 2024

An arm

This is correct. 'An arm' is the appropriate way to refer to a single arm in English.

Use 'an arm' when referring to a single arm. The use of 'an' before a word starting with a vowel sound is a rule in English grammar.

Examples:

She broke an arm in the accident.
He raised an arm to wave goodbye.

Show examples from the web [+]

An arm half-bent toward your hair.
An arm or a shoulder or some such.
An arm's reach from the water.
An arm was discovered at the beach.
An arm came round my throat.
An arm that had become infected, was in danger of exposing the body, and had to be cut off.
An arm off and out in that cold, he's dead now.
An arm was found at the beach today, possibly belonging to the sister of food columnist Hoemi Masumoto.
A head would fall. An arm would drop.
An arm for an eye, Kenny Powers!
I'd heard you'd found an arm.
I just lost an arm 'cause of you.
Of course it's not an arm.
If you lost an arm, you are a cripple.
Cartoon, kills himself, she loses an arm.
All zombied like him... but she was missing an arm.
I lost an arm for you.
I believe she's picking an arm off a tree, sir.
I felt like I lost an arm.
A man just lost an arm.

Alternatives:

a leg
an eye
a hand
an ear
a nose

a arm

This is incorrect. 'A arm' is not a valid construction in English.

Alternatives:

an arm
a leg
a hand
an eye
a nose

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An arm vs a arm

An arm

a arm

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