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TOEIC Link Part 5: loose versus lose

Loose and lose differ by one letter and are constantly confused, but they belong to different word classes. Loose is mainly an adjective meaning not tight or not firmly fixed. Lose is a verb meaning to fail to keep, win, or find something. Part 5 uses the missing-o spelling gap, but the slot — a quality describing a noun versus an action — decides which word is correct.

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TOEIC Link Part 5: loose versus lose

Loose and lose are separated by a single o, and even fluent writers mix them up, but they are different words doing different jobs. Loose is chiefly an adjective meaning not tight or not firmly fixed. Lose is a verb meaning to fail to keep, win, or find something. Part 5 pairs them because the spelling and the short vowel sound are so close; only the grammar of the slot shows which one belongs. For the broader skill of answering by sense rather than by sound or spelling, see word choice versus word form.

The core rule: not tight versus to fail to keep

  • loose is mainly an adjective meaning not tight, not firmly fixed, or free: A loose screw caused the rattle. / The loose pages fell out of the binder. / The dog got loose in the yard. It rhymes with goose (with an "s" sound). Think "the opposite of tight."
  • lose is a verb meaning to fail to keep, win, or find: Don't lose your receipt. / The team could lose the contract. / We lose money on every late shipment. It rhymes with choose (with a "z" sound). Think "to no longer have."

A memory hook: loose has two os, like a rope with too much slack — it's the loose one. lose dropped an o; it lost one, just as the verb means to lose something.

How to read the slot

  • Blank describes a noun (a quality) → loose (adjective). In a (blank) connection, the bolt is (blank), (blank) clothing, the slot tells you what something is like, so it is loose.
  • Blank is an action → lose (verb). In we may (blank) the account, customers (blank) confidence, don't (blank) the file, the slot is something done, so it is lose.

The fastest test: if the slot describes how tight or fixed something is, choose loose; if the slot is an action of failing to keep, win, or find, choose lose.

Common Part 5 traps

  • The part of speech is the giveaway. Only lose is a verb. If the slot follows to, a modal (can, will, might), or a subject as the sentence's action (the firm could (blank) clients), loose — an adjective — cannot fit.
  • An adjective slot before a noun points to loose. In a (blank) thread, a (blank) interpretation, the slot modifies the noun, so it is loose. A nearby article (a, the) plus a noun is a strong cue.
  • There is a rare verb loose, but it is not what Part 5 tests. Loose can mean "to release" in formal or literary English (to loose an arrow), but in business English the verb you want for "fail to keep" is always lose. Don't let the existence of the rare verb pull you toward the wrong spelling.

Quick check

Decide whether the slot describes a quality or names an action, then choose.

  1. A (blank) wire was responsible for the equipment failure.
  2. If we miss the deadline, we could (blank) the client.
  3. The supervisor noticed several (blank) bolts on the railing.
  4. Companies that ignore feedback tend to (blank) loyal customers.

Answers: 1. loose (adjective, not tight) 2. lose (verb, fail to keep) 3. loose (adjective, not firmly fixed) 4. lose (verb, fail to keep).

The takeaway

Loose and lose are a one-letter trap, so read the slot rather than the spelling: a quality describing how tight or fixed something is, is loose; an action of failing to keep, win, or find, is lose. For more confusable pairs the slot decides, see accept versus except and principal versus principle.