arm
UK /ɑːm/ · US /ɑɹm/ noun, verb, adjective
Forms arms arming armed armer armest
- noun (anatomy) The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand. “She stood with her right arm extended and her palm forward to indicate “Stop!””
- noun (anatomy) The extended portion of the upper limb, from the shoulder to the elbow. “The arm and forearm are parts of the upper limb in the human body.”
- noun A limb, or locomotive or prehensile organ, of an invertebrate animal. “the arms of an octopus”
- noun The part of a piece of clothing that covers the arm.
- noun A long, narrow, more or less rigid part of an object extending from the main part or centre of the object, such as the armrest of an armchair, a crane, a pair of spectacles or a pair of compasses. “The robot arm reached out and placed the part on the assembly line.”
- noun (geography) A bay or inlet off a main body of water. “Shelburne Bay is an arm of Lake Champlain.”
- noun A branch of an organization. “the cavalry arm of the military service”
- noun (figurative) Power; might; strength; support. “the arm of the law”
- verb (obsolete) To take by the arm; to take up in one's arms.
- adjective (UK dialectal, chiefly Scotland) Poor; lacking in riches or wealth.
- adjective (UK dialectal, chiefly Scotland) To be pitied; pitiful; wretched.
- noun (usually used in the plural) A weapon.
- noun (in the plural) Heraldic bearings or insignia. “The Duke's arms were a sable gryphon rampant on an argent field.”
- noun (in the plural, obsolete) War; hostilities; deeds or exploits of war.
- verb (transitive) To supply with armour or (later especially) weapons. “The king armed his knights with swords and shields.”
- verb (transitive, figurative) To supply with the equipment, knowledge, authority, or other tools needed for a particular task; to furnish with capability; to equip.
- verb (transitive) To prepare (a tool, weapon, or system) for action; to activate. “Remember to arm the alarm system before leaving for work.”
- verb (intransitive, of a tool, weapon, or system) To become prepared for action; to activate.
- verb (transitive) To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency. “to arm the hilt of a sword; to arm a hook in angling”
- verb (intransitive) To take up weapons; to arm oneself. “The sergeant sent out an order to arm the team for the next mission.”
Synonyms
sleeve beweapon branch limb weapon weapon system subdivision build up fortify gird
Antonyms
Etymology
From Middle English arm, from Old English earm (Anglian arm), from Proto-West Germanic *arm, from Proto-Germanic *armaz (“arm”), from Proto-Indo-European *h₂(e)rmos (“a fitting, joint; arm, forequarter”), a suffixed form of *h₂er- (“to join, fit together”).
Akin to Dutch arm, German Arm, Yiddish אָרעם (orem), Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish arm. Indo-European cognates include Latin armus (“the uppermost part of the arm, shoulder”), Bulgarian рамо (ramo), Polish ramię, Serbo-Croatian rȁme, Armenian արմունկ (armunk, “elbow”), Ancient Greek ἁρμός (harmós, “joint, shoulder”) and ἅρμα (hárma, “wagon, chariot”), Avestan 𐬀𐬭𐬨𐬀 (arma), Old Persian [script needed] (arma).
From Middle English arm (“poor, wretched”), from Old English earm (“poor, miserable, pitiful, wretched”), from Proto-West Germanic *arm, from Proto-Germanic *armaz (“poor”), from Proto-Indo-European *h₁erm- (“poor, ill”).
Akin to Dutch arm (“poor”), German arm (“poor”), Yiddish אָרעם (orem, “poor”), Swedish arm (“poor”).
Back-formation from arms (plural), from Middle English armes, from Old French armes, from Latin arma (“weapons”), from Proto-Indo-European *h₂er-mo-, a suffixed form of *h₂er- (“to fit together”), hence ultimately cognate with etymology 1.
Webster’s 1913
- noun The limb of the human body which extends from the shoulder to the hand; also, the corresponding limb of a monkey.
- noun Anything resembling an arm; as, (a) The fore limb of an animal, as of a bear.
- verb To take by the arm; to take up in one's arms. [Obs.]
- verb To furnish with arms or limbs. [R.]
Etymology [AS. arm, earm; akin to OHG. aram, G., D., Dan., & Sw. arm, Icel. armr, Goth. arms, L. armus arm, shoulder, and prob. to Gr. rame. Art, Article.]
Etymology [See Arms.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “arm”, CC BY-SA 4.0. Details