arm
Arm (noun) means the part of the human body running from the shoulder down to the hand. Example: “She waved her arm to flag down the taxi.”
How to use arm
Learner’s notesIn plain EnglishUsually the body part between shoulder and hand, but also anything that sticks out and extends from a main structure — a chair arm, a company arm, an arm of the sea.
Don't confuse the verb "to arm" (give weapons) with the noun "arm" (limb) — context almost always makes it clear, but they're unrelated in meaning even though spelled the same.
Word forms
armer comparative, more arm comparative, armed past tense, armed past tense, arms plural, arms plural, arms singular, arms singular, armest superlative, most arm superlative
Fill the gap
Can you complete this real example?
She waved her _____ to flag down the taxi.
Etymology
From Old English earm, going back through Proto-Germanic to a very old Indo-European root meaning "to join or fit together" — the same root that gives Latin armus ("shoulder") and, further along, the word "army."
Synonyms
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Rhymes for arm
See all rhymes for arm →Frequently asked questions
What does “arm” mean?
The word “arm” means the part of the human body running from the shoulder down to the hand. In plain terms, usually the body part between shoulder and hand, but also anything that sticks out and extends from a main structure — a chair arm, a company arm, an arm of the sea.
How do you pronounce “arm”?
“Arm” is pronounced ahm (/ɑɹm/ in IPA).
How do you use “arm” in a sentence?
Here is “arm” used in a sentence: “She waved her arm to flag down the taxi.”
What part of speech is “arm”?
Depending on how it is used, “arm” can be a noun and a verb.
Where does the word “arm” come from?
The word “arm” comes from Latin. From Old English earm, going back through Proto-Germanic to a very old Indo-European root meaning "to join or fit together" — the same root that gives Latin armus ("shoulder") and, further along, the word "army.".
Is “arm” a common word?
“Arm” is a very common word in modern English, usually learned at around the A1 level.
How many meanings does “arm” have?
“Arm” has 4 distinct senses listed in this dictionary. The most common is: the part of the human body running from the shoulder down to the hand.
What is the difference between the arm and the forearm?
The arm is the whole upper limb, running from the shoulder all the way to the hand. The forearm is only the lower part of it, between the elbow and the wrist. The section above the elbow is called the upper arm, and the part below it is the forearm.
What are the bones of the arm?
The upper arm contains a single long bone, the humerus. The forearm has two bones side by side, the radius and the ulna, which let you twist your hand palm-up and palm-down. These meet at three main joints — the shoulder, the elbow and the wrist — giving the arm its wide range of movement.
What is the difference between an arm and a limb?
A limb is any of the body's four main projecting parts used for movement — the two arms and two legs all count as limbs. 'Arm' is more specific: it names an upper limb, from the shoulder to the hand. So every arm is a limb, but not every limb is an arm.
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