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Wordabulary

arm

UK /ɑːm/ US /ɑːrm/ Syllables: arm

Pronunciation
Noun A1 Beginner Neutral

Quick answer

The part of your body between your shoulder and your hand.

Your arm is the part of your body between your shoulder and your hand. It has an upper part, an elbow and a lower part, and it ends in the wrist. You use your arms to carry, push, reach and hug. The word is also used for something that sticks out like an arm, such as the arm of a chair or an arm of the sea. As a verb, to arm someone is to give them weapons, but that is a separate word with a different origin from the body part.

"She waved her arm to say goodbye."

Meanings

  1. The part of the body between the shoulder and the hand.
  2. A part that sticks out like an arm, such as the arm of a chair.

Example sentences

  • "He carried the boxes in his arms."

    Level A1, Meaning 1

  • "She broke her arm when she fell off her bike."

    Level A1, Meaning 1

  • "They walked down the street arm in arm."

    Level A2, Meaning 1

  • "The arm of the sofa was covered in a soft blanket."

    Level A2, Meaning 2

Look-alikes and common mistakes

  • hand : The hand is at the end of the arm. The arm is the whole limb from the shoulder.
  • sleeve : A sleeve covers the arm. The arm is the part of the body.

Word family and forms

Forms: arms

armchair armband armpit forearm

Word partners

Words and phrases that often go with "arm".

  • an arm in a cast
  • broken arm
  • hold in your arms
  • arm in arm
  • the arm of a chair
  • cost an arm and a leg

Idioms and phrases

cost an arm and a leg
To be very expensive.
"That car costs an arm and a leg."
arm in arm
With arms linked together.
"The two friends walked arm in arm."

Origin

Arm comes from Old English earm, a very old Germanic word that is the same in Dutch and German, which say arm too, and is related to Latin armus, a shoulder. English has had the word since before the year 900. The verb arm, meaning to give weapons, is a different word.

Checked against: Wiktionary, the free dictionary, Dictionary.com.

How to remember it

Arm is a short word for a short job: from your shoulder out to your hand.

Test yourself

Which word fits the gap? "He carried the boxes in his _____."

Answer: arm

In your own words, what does "arm" mean?

The part of your body between your shoulder and your hand.

Learn next at A1

Sources and credits

Last reviewed October 20, 2026. Report a mistake on this page

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