Lose is a verb that means to misplace something, be deprived of it, or fail to win: Don't lose your keys; we don't want to lose the match. Loose is almost always an adjective meaning not tight, not firmly fixed, or free: a loose tooth, loose change, the dog got loose. The quickest test is sound — lose rhymes with news and buzzes on a soft "z", while loose rhymes with goose and hisses on a sharp "s".
The core difference
These two words are separated by a single letter, but they belong to different word classes and sound different.
- Lose (/luːz/, rhymes with choose) is a verb. Its forms are lose, loses, losing, lost. It means to no longer have something, to misplace it, or to be beaten.
- Loose (/luːs/, rhymes with moose) is nearly always an adjective. It means not tight, slack, unfastened, or free. Its comparative forms are looser and loosest.
The confusion is really a spelling trap. English almost always pairs a single "o" with a long "oh" sound — nose, rose, hose, close and dose all rhyme with one another — so lose looks as if it should rhyme with nose. It doesn't, and writers "fix" the mismatch by adding a second "o", accidentally turning lose into loose. Simply knowing that the spelling of lose is irregular is half the battle.
Let your ear decide
Say the sentence aloud. If the word buzzes like a bee — a voiced z — you want lose. If it hisses like a snake — a sharp s — you want loose. Compare I always lose my umbrella (buzz) with this knot is loose (hiss). Your mouth already knows the difference even when the spelling tries to trick you.
Correct vs incorrect examples
✓ Use lose (verb) here
- Try not to lose your keys again. — to misplace
- We could lose the final if the defence slips. — to fail to win
- Wear a hat or you'll lose heat through your head. — to be deprived of
- Don't lose heart — you're nearly there. — the idiom lose heart
- She's losing her patience. — note the spelling: one "o"
✓ Use loose (adjective) here
- This tooth feels loose. — not firmly fixed
- He wears loose, comfortable clothes. — not tight
- There's some loose change in the drawer. — not contained
- The horse broke loose from its pen. — free, unrestrained
- It's only a loose translation of the poem. — not exact or strict
✗ Common mistakes
- ✗ I don't want to loose you. → ✓ lose
- ✗ They're going to loose the election. → ✓ lose
- ✗ Nobody likes a bad looser. → ✓ loser (one "o")
- ✗ I'm loosing my mind. → ✓ losing
- ✗ My belt is too lose. → ✓ loose (the rare time the error runs the other way)
Tricky cases and honest exceptions
Loose really can be a verb — it just never means lose
Here is the exception that trips up even careful writers: loose genuinely is a verb as well as an adjective. To loose something is to release or unleash it — the archer loosed an arrow, they loosed the hounds. It is a real, if slightly literary, word, and loosen is the everyday choice for "make less tight". What loose never means is "to misplace" or "to fail to win". So loose the dogs is fine, but don't loose the game is wrong. If you mean release, loose or loosen may fit; if you mean anything else, you want lose.
Loser vs looser
These are two different words, not a typo of each other. A loser (one "o") is someone who loses. Looser (two "o"s) is the comparative of loose, meaning less tight: These jeans are looser than my old pair. A sore loser is never a sore "looser".
Losing vs loosing
Both spellings exist, but they point in opposite directions. Losing (from lose) is what you need almost every time: a losing streak, losing weight, losing your grip. Loosing (from the verb loose) means releasing, and is rare. When in doubt, drop an "o": it's losing, not loosing.
An easy way to remember it
Two tricks — take your pick:
- Sound it out. Loose rhymes with goose, and a loose thing is "as loose as a goose". Lose rhymes with news and ooze.
- Count the O's. When you lose something you have less, so lose has lost one of its o's and keeps just one. Loose hangs on to both — like a loose tooth with room to wiggle.
US and UK usage
Good news: unlike colour/color or -ise/-ize, there is no transatlantic split here. Lose and loose are spelled, pronounced and used the same way in American and British English. The one small difference is an idiom: when you have nothing to do, Britons are at a loose end, while Americans are at loose ends. Either way it is loose, never lose.
The bottom line
If the word is doing something — misplacing, being beaten, being deprived — it is the verb lose, with one "o" and a buzzing "z". If it is describing something that isn't tight or tied down, it is the adjective loose, with two "o"s and a hissing "s". When in doubt, say it out loud and ask yourself: goose or news?
