English Reference
adjective · verb · noun

loose

adj. · v. · n.
US /ˈɫus/ UK /lˈuːs/ loose UK spelling loosed, looses, loosing

  1. 01 A2 Elementary

    adj.not fitting closely to your body.

    adj.not fitting closely or tightly; having a generous cut or significant space between the object and the surface.

    Simple

    He prefers wearing loose shirts when the weather is hot and humid.

    In context

    The athlete opted for loose clothing during the warm-up to ensure a full range of motion before the race began.

    Pitfall
    I don't want to loose my keys. I don't want to lose my keys.

    Do not confuse 'loose' (not tight) with 'lose' (to misplace something).

  2. 02 B1 Intermediate

    adj.not held in place securely; likely to fall or move.

    adj.not securely attached or fastened in place; liable to become detached.

    Simple

    Be careful on the stairs because one of the wooden boards is loose.

    In context

    The mechanic discovered a loose bolt in the engine housing that had been causing the unusual vibration during high-speed travel.

  3. 03 B2 Upper Intermediate

    adj.not precise or strictly accurate.

    adj.lacking precision, exactness, or strict adherence to a set of rules or facts.

    Simple

    The movie is a loose translation of a very famous historical novel.

    In context

    The journalist provided a loose summary of the closed-door negotiations, focusing on the general atmosphere rather than specific policy agreements.

    vagueapproximateimprecise
  4. 04 B1 Intermediate

    adj.not tied up or kept in a cage.

    adj.not confined, imprisoned, or tethered; free from physical restraint.

    Simple

    The neighbor's dog is loose again and running around the park.

    In context

    Authorities warned residents to stay indoors after reports that several exotic animals were loose following the storm damage at the sanctuary.

    freeunconfinedescaped
  5. 05 C1 Advanced Literary

    v.to let something go or set it free from a trap or grip.

    v.to set free from restraints or to release a projectile.

    Simple

    The archer took a deep breath and loosed the arrow at the target.

    In context

    The commander loosed his cavalry upon the retreating flank, hoping to end the engagement before nightfall.

    Usage

    Often used with 'on' or 'upon' when releasing a force or feeling.

  6. 06 C2 Proficiency TechnicalBritish English Sport

    n.the part of a rugby game where the ball is moving and not in a set position.

    n.the phase of play in rugby where the ball is in open play rather than in a scrum or line-out.

    Simple

    He is a very fast player who performs best in the loose.

    In context

    The flanker's ability to dominate in the loose proved decisive during the final twenty minutes of the match.

    open play
    set piece

Usage loose ball

By the end of the week, my swimsuit hung loose at the shoulders.

Aeon· 21 Aug 2026

With high temperatures, the ice can melt and rocks break loose, causing rockfalls.

Phys.org· 20 Aug 2026

Etymology tree Proto-Germanic *lausaz Old Norse laussbor. Middle English loos English loose From Middle English loos, los, lous, from Old Norse lauss, from Proto-Germanic lausaz, whence also -less, leasing; from Proto-Indo-European lewh₁- (“to untie, set free, separate”), whence also lyo-, -lysis, via Ancient Greek.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin ine-pro *lewh₁-
Level B2 · Upper Intermediate
Frequency Common
Updated