arm — English Dictionary

arm
Pronunciations (3)
  • /ɑːm/
    Pronunciation notes
    • Received-Pronunciation
  • /ɑɹm/
    Pronunciation notes
    • General-American
  • /ɐːm/
    Pronunciation notes
    • Australia

Noun

  1. The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.

    Examples

    She carried the child in her arms.

    She stood with her right arm extended and her palm forward to indicate “Stop!”

    More examples (1)

    When Timothy and Julia hurried up the staircase to the bedroom floor, where a considerable commotion was taking place, Tim took Barry Leach with him. He had him gripped firmly by the arm, since he felt it was not safe to let him loose, and he had no immediate idea what to do with him.

    And you stare at me In your Jesus Christ pose Arms held out Like you've been carrying a load

  2. The extended portion of the upper limb, from the shoulder to the elbow.

    Examples

    The arm and forearm are parts of the upper limb in the human body.

  3. A limb, or locomotive or prehensile organ, of an invertebrate animal.

    Examples

    the arms of an octopus

  4. The part of a piece of clothing that covers the arm.

    Synonyms
    Examples

    […] one arm of this jacket streamed behind him like the broidered arm of a huzzar’s surcoat.

    […] he noticed that a dark stain had appeared under the arm of her grey silk dress.

    More examples (1)

    Samad made a grab for the boy and caught him by the arm of his shirt.

  5. 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.

    Examples

    The robot arm reached out and placed the part on the assembly line.

    I accidentally sat on my glasses and bent one of the arms.

  6. A bay or inlet off a main body of water.

    Examples

    Shelburne Bay is an arm of Lake Champlain.

  7. A branch of an organization.

    Examples

    the cavalry arm of the military service

    More examples (1)

    Congress has asked the Government Accountability Office, its investigative arm, to review the workplace complaints raised by air marshals, said Charles Young, a spokesman for the office.

  8. Power; might; strength; support.

    Usage
    • Figurative
    Examples

    the arm of the law

    the secular arm

    More examples (1)

    To whom is the arm of the Lord revealed?

  9. A pitcher

    Usage
    • Slang
    Examples

    The team needs to sign another arm in the offseason.

  10. One of the two parts of a chromosome.

  11. A group of patients in a medical trial.

  12. A quantity of dagga leaves rolled up in paper into a thick cylinder.

    Usage
    • South-Africa
    • Slang
    Examples

    They scored an arm of dagga and some speed and then raced away.

Verb

  1. To take by the arm; to take up in one's arms.

    Usage
    • Obsolete
    Examples

    And make him with our pikes and partisans / A grave: come, arm him.

    Arm your prize; / I know you will not lose him.

Adjective

  1. Poor; lacking in riches or wealth.

    Usage
    • Scotland
    • UK usage
    • dialectal
  2. To be pitied; pitiful; wretched.

    Usage
    • Scotland
    • UK usage
    • dialectal

Noun

  1. A weapon.

    Usage
    • usually
    • used in the plural
    Examples

    A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

    The next thing I laid hold of was a brace of pistols, and as I already had a powder horn and bullets, I felt myself well supplied with arms.

  2. Heraldic bearings or insignia.

    Usage
    • in-plural
    Examples

    The Duke's arms were a sable gryphon rampant on an argent field.

  3. War; hostilities; deeds or exploits of war.

    Usage
    • in-plural
    • Obsolete

Verb

  1. To supply with armour or (later especially) weapons.

    Usage
    • Transitive
    Examples

    The king armed his knights with swords and shields.

    More examples (1)

    They were arming them with spears and shields, putting iron halfhelms on their heads, and arraying them along the inner wall, a rank of snowy sentinels. "Lord Winter has joined us with his levies," one of the sentries [said].

  2. To supply with the equipment, knowledge, authority, or other tools needed for a particular task; to furnish with capability; to equip.

    Usage
    • Figurative
    • Transitive
    Examples

    thou getteſt no more of me. For I am ſure thy Office doth not arme thee with ſuch authoritie.

    arm yourselves likewise with the same mind: for he that hath suffered in the flesh hath ceased from sin;

    More examples (5)

    Many following him, and, in his journeyings, he visited many at their houses, and gave them consolation, arming them with steady resolves, to be patient in suffering and trust to God for their reward; […]

    [God] directed them to choose out three hundred only, and, arming them with nothing but trumpets and lamps, to send them by night into the camp of the Midianites.

    Q. In other words, you were commissioning men here in Cincinnati to attend the polls, arming them with authority to arrest citizens; men from outside of the city of Cincinnati to arrest citizens of the city of Cincinnati […]

    Picture taking soothed support troops' anxieties twice over, empowering them as they navigated a strange environment, and arming them with proof that they really had served in a war.

    […] and arming them with skills, work habits, and inner confidence that no one can ever take away.

  3. To prepare (a tool, weapon, or system) for action; to activate.

    Usage
    • Transitive
    Examples

    Remember to arm the alarm system before leaving for work.

  4. To become prepared for action; to activate.

    Usage
    • Intransitive
    • of a tool
    Examples
    More examples (1)

    Torpedoes were loosed, but the range was too short for them to actually arm, and they bounced harmlessly off the ship as it cut loose with its secondary and antiaircraft guns, smashing anything that it could see.

  5. To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency.

    Usage
    • Transitive
    Examples

    to arm the hilt of a sword; to arm a hook in angling

  6. To take up weapons; to arm oneself.

    Usage
    • Intransitive
    Examples

    The sergeant sent out an order to arm the team for the next mission.

    Are you arming, comrade Atheists? Are you arming for the fray?

  7. To fit (a magnet) with an armature.

    Usage
    • Transitive

Noun

  1. a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb

    Broader terms
  2. any projection that is thought to resemble a human arm

    Synonyms
    Broader terms
    Examples

    the arm of the record player

    an arm of the sea

    More examples (1)

    a branch of the sewer

  3. any instrument or instrumentality used in fighting or hunting

    Broader terms
    Examples

    he was licensed to carry a weapon

  4. the part of an armchair or sofa that supports the elbow and forearm of a seated person

    Broader terms
  5. a division of some larger or more complex organization

    Broader terms
    Examples

    a branch of Congress

    botany is a branch of biology

    More examples (1)

    the Germanic branch of Indo-European languages

  6. the part of a garment that is attached at the armhole and that provides a cloth covering for the arm

    Synonyms
    Broader terms

Verb

  1. prepare oneself for a military confrontation

    Antonyms
    Examples

    The U.S. is girding for a conflict in the Middle East

    troops are building up on the Iraqi border

  2. supply with arms

    Examples

    The U.S. armed the freedom fighters in Afghanistan

Word forms
armsarmsarmingarmedarmedarmermore armarmestmost arm

Code Formatters

Format and beautify Java, Python, JavaScript, JSON, HTML and more; adjust indentation, spacing and line breaks.

More tools

Audio Editing & Effects

Trim, join or split recordings, remove silence or noise, and adjust volume, speed, pitch or channels.

More tools

Spreadsheet Tools

Open and edit CSV or Excel sheets, format tabular text, and convert CSV to Excel or SQL.

More tools

Markdown Tools

Write and preview Markdown, render Mermaid diagrams, and convert Markdown, HTML and tables between formats.

More tools

Text Tools

Compare passages, count words and keywords, sort or replace lines, and view DOCX text.

More tools

Dictionaries

Look up Chinese meanings, synonyms and antonyms, or find IPA pronunciations in multiple languages.

Audio Conversion & Playback

Convert between MP3, WAV, FLAC and more, play audio or raw PCM, and inspect or edit audio metadata.

JSON & Data Tools

Inspect, compare and validate JSON; test JSONPath expressions, or convert data to CSV, YAML and XML.

More tools

Speech Tools

Transcribe audio to text, generate speech from text, or record your voice in the browser.

Video Tools

Convert and compress video, trim or join clips, resize frames, and extract audio.

More tools

Video Playback & Recording

Play local or streaming video, record your screen or camera, and use your camera as an online mirror.

PDF Tools

Compress or merge PDFs, split and rearrange pages, convert pages to images, and view or compare documents.

More tools

Image Tools

Convert image formats, resize or crop photos, compress files, compare pictures, and extract text with OCR.

More tools

Image Creation

Capture and beautify screenshots, turn text into images or GIFs, draw on a whiteboard, and create word clouds or favicons.

More tools

Subtitle Tools

Edit SRT or VTT captions with a video preview, shift timing, convert formats, and manage subtitle tracks.

More tools

Archive Tools

Open ZIP, 7Z, RAR or TAR files, extract selected contents, and create new archives with optional ZIP/7Z passwords.

Encoders | Decoders

Encode and decode Base64 or Base32, escape URLs, HTML and Unicode text, and inspect JWT contents.

More tools

Number Tools

Convert number bases and values between binary, decimal and hex; turn numbers into words or text into binary.

Calculators

Work out percentages and fractions, summarize statistics, and calculate grades, discounts or aspect ratios.

More tools

Time Tools

Show an online clock, run a countdown or stopwatch, and calculate dates, ages or time-zone differences.

More tools

Network Tools

Check your IP and IPv6 connection, inspect HTTP requests or HAR files, and calculate CIDR address ranges.

Unit Conversions

Convert length, weight, temperature, data storage and other units.

Color Tools

Convert HEX, RGB and HSL values, extract colors from an image, check contrast, or test your display with solid colors.

QR Codes & Barcodes

Generate and scan QR codes or barcodes, including QR codes for links and Wi-Fi networks.

Developer & Security Tools

Generate hashes, UUIDs and passwords, test regular expressions, create URL slugs and check file permissions.

More tools

Utility Tools

Check screen resolution and refresh rate, measure with a screen ruler, test keys, or read from a teleprompter.

More tools

Games

2048, Minesweeper, Sudoku, Gomoku, Tank Battle

More tools