Arm vs Limb

When to use each in English, with meaning, register, and examples.

Arm

Top 1,000 (very common)A1noun

Limb

Beyond 10,000 (less common)C1noun
Most common: Arm
 ArmLimb
Pronunciation🇬🇧 /["/ɑːm/"]/🇺🇸 /["/ɑːrm/"]/🇬🇧 /["/lɪm/"]/🇺🇸 /["/lɪm/"]/
MeaningThe upper part of your limb between the shoulder and the wrist.A part of the body, like an arm or a leg.
ExampleShe raised her arm to signal for help.The tree lost a large limb during the storm last night.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Beyond 10,000 (less common)
CEFR levelA1C1
Part of speechnounnoun
Collocationsarm wrestling, raise an arm, broken arm, arm aroundlong, short, slender, amputate, sever, lose, development, growth, amputation
Antonymslegcenter, core, trunk
Common mistakesConfused with 'harm' in writing., Using 'arms' when referring to a single arm., Mixing up 'arm' with other body parts like 'leg' or 'hand'.Confusing 'limb' with 'limbs', which can refer to multiple parts., Using 'limb' to describe non-body parts., Incorrectly spelling 'limb' as 'limbz' in informal contexts.
Usage notesUse 'arm' in both formal and informal contexts. It's appropriate when referring to the body part or in phrases like 'armchair'. Avoid using it in overly technical medical contexts without clarification.Used in both medical contexts and everyday speech. Avoid in casual conversations unless discussing body parts specifically.

Frequently asked questions: Arm vs Limb

What's the difference between Arm and Limb?

Arm: The upper part of your limb between the shoulder and the wrist. Limb: A part of the body, like an arm or a leg.

Which is more common: Arm and Limb?

Arm is the most common in everyday English.

Which is more advanced: Arm and Limb?

Limb is the highest level, at C1, on the CEFR scale.

Are Arm and Limb the same CEFR level?

Arm: A1, Limb: C1 on the CEFR scale.

What part of speech are Arm and Limb?

Arm: noun, Limb: noun.

Can you show an example of each?

Arm: She raised her arm to signal for help. Limb: The tree lost a large limb during the storm last night.

Can I use Arm and Limb interchangeably?

Not always. Arm and Limb are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.