loadervslooserWhich spelling fits?

Quick tell: loader is a noun, looser is an adjective, so they fill different roles in a sentence.

Which to use

“loader” is a noun and “looser” is an adjective - they look or sound alike but fill different roles in a sentence.

#25,459
“loader” frequency rank
#29,352
“looser” frequency rank
54811
confusion score

Side-by-Side Comparison

Feature loader looser
Definition Agent noun of load; a person or device that loads. comparative form of loose: more loose

Where the eye mixes loader and looser

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
loader
6 ch
looser

Visual trap between loader and looser

These two trip readers on the page rather than in the ear: loader is /ˈloʊdɚ/ while looser is /ˈluːsə/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 54811, derived from the frequency rank of both members and their visual similarity.

loader is recorded at frequency rank #25,459, classified as anoun, pronounced /ˈloʊdɚ/. looser is at rank #29,352, tagged as anadj, pronounced /ˈluːsə/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 54811, this pair ranks #138,306 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of loader vs looser

Shared letters: elor. Private to "loader": ad. Private to "looser": s.

"loader" · 6 letters · shape CVVCVC  ·  "looser" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • loaderlaoder · lloader · loadder · loaderr · loadre · loaedr · lodaer · olader
  • looserllooser · looesr · looserr · loosre · loosser · losoer · oloser

Frequently Asked Questions

Can "loader" and "looser" be used interchangeably?
No - they are not even the same part of speech. "loader" is a noun and "looser" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "loader" or "looser"?
"loader" is the more common of the two: it sits at frequency rank #25,459 in our English list, against #29,352 for "looser". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "loader" and "looser" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "loader" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "looser" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #138,306 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "loader" and "looser" also get mixed up with nearby pairs, the highest-scored neighbour is "lodger vs looser". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #138,306 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list