retainvsretainerWhat's the difference?

Quick tell: retain is a verb, retainer is a noun, so they fill different roles in a sentence.

Which to use

“retain” is a verb and “retainer” is a noun - they look or sound alike but fill different roles in a sentence.

#5,541
“retain” frequency rank
#24,886
“retainer” frequency rank
30427
confusion score

Side-by-Side Comparison

Feature retain retainer
Definition Often followed by from: to hold back (someone or something); to check, to prevent, to restrain, to stop. Any thing or person that retains.

Where the spellings diverge

Shared letters are muted; the letters that actually set retain and retainer apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

6 ch
retain
8 ch
retainer

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: retain is /ɹɪˈteɪn/ while retainer is /ɹɪˈteɪn.ə/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “retain” sits inside “retainer”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 30427, derived from the frequency rank of both members and their visual similarity.

retain is recorded at frequency rank #5,541, classified as averb, pronounced /ɹɪˈteɪn/. retainer is at rank #24,886, tagged as anoun, pronounced /ɹɪˈteɪn.ə/.

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 30427, this pair ranks #354,653 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of retain vs retainer

Shared letters: aeinrt. Private to "retain": -. Private to "retainer": -.

"retain" · 6 letters · shape CVCVVC  ·  "retainer" · 8 letters · shape CVCVVCVC

Known mistypes of this pair

  • retainertain · reatin · retainn · retani · retian · rettain · rretain · rteain
  • retainerertainer · reatiner · retaienr · retainerr · retainner · retainre · retanier · retianer

Frequency comparison

retain#5,541
retainer#24,886

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "retain" and "retainer" be used interchangeably?
No - they are not even the same part of speech. "retain" is a verb and "retainer" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "retain" or "retainer"?
"retain" is the more common of the two: it sits at frequency rank #5,541 in our English list, against #24,886 for "retainer". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering retain vs retainer

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “retain”; for a noun, it's “retainer”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “retain” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list