DictionaryAI

beam

BEEM/biːm/

Pluralbeams

Verbbeams, beaming, beamed

25 meanings of beam

Practice

  1. 1
    ray of lightnouncountable
    A ray or narrow stream of light, other radiation, or particles sent out from a source; also, figuratively, a gleam of something such as hope or humor.

    A single beam of sunlight broke through the clouds over the valley.

    Lighthouse beams swept the coastline every few seconds through the fog.

    UsageOften a beam of light or energy; a car's headlights can be on high beam or low beam.

    Similarray, shaft, stream, gleam

    Note

    Physics uses the word for a bundle of nearly parallel rays, and that is what sets it apart from a single ray: a beam has breadth as well as direction. Shakespeare already has a candle that "throws his beames" in The Merchant of Venice.

    Checked 1 Nov 2026 · 1 fact

    • Shakespeare's The Merchant of Venice contains the quoted phrase about a candle; the speaker is Portia. en.wiktionary.org
  2. 2
    building supportnouncountable
    A long, strong piece of timber, steel or concrete, especially one of the main horizontal supports of a building or structure.

    The contractor replaced a cracked beam before finishing the renovation.

    Exposed ceiling beams give the converted loft an industrial look.

    Similargirder, timber

    Note

    In a building the word narrows to the main horizontal members, the ones that span a space. The material usually comes first: steel beams, concrete beams, oak beams, or the wooden beams of the kitchen hidden inside a hill in Beatrix Potter's The Tale of Mrs. Tiggy-Winkle (1905). Horizontal is the usual case, though sloping beams are common in roofs. An upright member is normally called a post or a column.

    Checked 31 Oct 2026 · 2 facts

    • Beatrix Potter wrote The Tale of Mrs. Tiggy-Winkle, first published in 1905. gutenberg.org
    • The story describes wooden beams in a kitchen inside a hill. en.wikisource.org
  3. 3
    be all smilesverbfigurativelyintransitive
    To smile broadly or with particular cheerfulness.

    The new parents beamed at everyone who stopped by the hospital room.

    Graduates beam as they cross the stage to collect their diplomas.

    UsageYou beam at someone and beam with pride or delight.

    Similargrin, smile, glow

    Oppositefrown, scowl

    Note

    Here a face shines with feeling, so the smile is pictured as light, borrowed from the verb for shining.

    Checked 1 Nov 2026 · 1 fact

  4. 4
    send out lightverbtransitive or intransitive
    Of the sun, a lamp, or another light source, to send out rays and shine.

    Headlights beam through the fog on the mountain road.

    The full moon beamed over the quiet harbor all night.

    Similarshine, glow, stream, radiate

    Note

    The verb works with or without an object. Without one, the light-giver simply shines: the moon beamed over the harbor. With one, the verb sends something outward, as in "to beam forth light," or a figure who "beams golden light from his solar plexus." The transitive use sits close to the later verbs of transmission.

    Checked 30 Oct 2026 · 1 fact

    • The quoted examples “to beam forth light” and “beams golden light from his solar plexus” occur with this wording. en.wiktionary.org
  5. 5
    gymnasticsnounabbreviationellipsis
    In gymnastics, the narrow raised bar on which gymnasts perform, or the event performed on it; short for balance beam.

    Her routine on beam earned the highest score of the night.

    Despite falling on her first leap, she climbed straight back onto the beam and finished her routine with confidence.

    UsageFor the event, often on beam: she competes on beam. For the apparatus, usually the beam: she fell off the beam.

    Note

    A clipping of balance beam that covers both the apparatus and the event. The full compound also names the bar of a weighing scale, which plain beam names too, but as a clipping the word belongs to gymnastics.

    Checked 1 Nov 2026 · 2 facts

    • Beam is a shortened name for both the gymnastics apparatus and the event. en.wikipedia.org
    • Balance beam also names the horizontal bar of a weighing scale. en.wiktionary.org
  6. 6
    transport by rayverbtransitive
    In science fiction, to transport people or objects instantly from one place to another by means of an energy beam.

    The mothership hovered overhead, ready to beam entire vehicles aboard.

    In the show, the crew beams an injured officer directly to sickbay.

    UsageMostly with a direction: beam up, beam down, beam aboard.

    Similarteleport, transport

    Note

    The science-fiction verb of teleportation, popularized by Star Trek. "Beam me up, Scotty" has become a catchphrase, often used jokingly to wish oneself away from somewhere dreary, as in "there's no intelligent life down here."

    Checked 1 Nov 2026 · 4 facts

  7. 7
    ship's widthnouncountable or uncountable
    The maximum width of a ship or boat, measured at its widest point.

    With a beam of nearly forty feet, the yacht barely fit in the slip.

    Cargo ships built for the canal are limited in beam by the width of its locks.

    UsageGiven as a figure, a beam of ten feet, beside length and draft; breadth means the same.

    Similarbreadth

  8. 8
    send wirelesslyverbtransitive
    To send signals, broadcasts, or data without wires, by radio, satellite, or a direct link such as infrared between two devices.

    Early handheld organizers could beam contact cards to each other over an infrared link.

    The payment terminal beams a receipt straight to the customer's phone.

    UsageOften passive with a destination: beamed live around the world, beamed to a phone.

    Similartransmit, send

    Note

    The real-world cousin of the teleporter verb, used for signals and data instead of people. Broadcasting gave it the long-range sense, as when a World Cup is beamed live around the world by satellite. Handheld devices brought the short-range kind: Michael Miller's 10 Minute Guide to Pocket PC 2002 explains how "to beam a file to another Pocket PC." Either way, the core idea is a signal aimed through the air at its receiver.

    Checked 31 Oct 2026 · 2 facts

    • World Cup matches have been broadcast live worldwide using satellite communications. en.wikipedia.org
    • Michael Miller's 10 Minute Guide to Pocket PC 2002 contains the quoted instructions about beaming a file to another Pocket PC. en.wiktionary.org
  9. 9
    install supportsverbtransitive
    To fit a ceiling, building or other structure with beams, whether supporting or decorative.

    The farmhouse kitchen is beamed with dark, hand-cut timbers more than two hundred years old.

    The architect had the new extension beamed with reclaimed oak to match the older part of the house.

Practice

Can you tell the meanings of beam apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

From Middle English beem, from Old English bēam ('tree, wood, post, rafter'), from Proto-West Germanic *baum and Proto-Germanic *baumaz ('tree, beam'), traditionally traced to Proto-Indo-European *bʰew- ('to grow, swell'). It is cognate with Dutch boom, German Baum, and Yiddish בוים (boym), all meaning 'tree', and is a doublet of boom. The verb is from Old English bēamian ('to shine, to cast forth rays of light'), formed from the noun.

Checked 31 Oct 2026 · 8 facts

  • Beam descends through Middle English beem and Old English bēam from Proto-West Germanic *baum and Proto-Germanic *baumaz. en.wiktionary.org
  • Old English bēam had the stated meanings. en.wiktionary.org
  • Proto-West Germanic *baum meant tree and beam. en.wiktionary.org
  • The connection with *bʰew- meaning 'to grow, swell' is a traditional proposed derivation. en.wiktionary.org
  • Dutch boom and German Baum are cognates meaning tree. en.wiktionary.org
  • Yiddish בוים is transliterated boym, means tree, and shares the Germanic ancestry. en.wiktionary.org
  • Beam and boom are doublets. en.wiktionary.org
  • The verb derives from Old English bēamian, with the stated light-related meaning, formed from the noun. en.wiktionary.org