complain

/kəmˈpleɪn/

//kəmˈpleɪn// verb

"complain" is a 8-letter English headword indexed on PlainSpell.

The verdict

“complain” is a regularly-used English word, ranked #4,840 in English word frequency and used as a verb.

#4,840
frequency rank, English
8
letters
12
tracked misspellings
7
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To express feelings of pain, dissatisfaction, or resentment.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

complain vs complaint
89% similar
complain vs complains
89% similar
complain vs complying
78% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for complain
PropertyValue
Headwordcomplain
LanguageEnglish
Part of speechVerb
IPA/kəmˈpleɪn/
Letters8
Frequency rank#4,840
Misspellings tracked12
Confusable pairs7
SourceWiktionary (kaikki.org)

Where “complain” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). complain lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for complain is 8 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /kəmˈpleɪn/. Corpus data places it at rank #4,840 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 12 likely wrong-spelling variants for complain, with forms such as "ccomplain", "cmoplain", and "comlpain". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 7 confusable-pair relationships, "complaint", "complains", "complying", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English complaynen, from Old French complaindre, from Medieval Latin complangere (“to bewail, complain”), from Latin com- (“together”) + plangere (“to strike, beat, as the breast in extreme grief, bewail”); see plain, plaint. The correct English form is complain, spelled C-O-M-P-L-A-I-N.

Definition

  1. 1
    To express feelings of pain, dissatisfaction, or resentment.
  2. 2
    To make a formal accusation or bring a formal charge.
  3. 3
    To creak or squeak, as a timber or wheel.

Etymology

From Middle English complaynen, from Old French complaindre, from Medieval Latin complangere (“to bewail, complain”), from Latin com- (“together”) + plangere (“to strike, beat, as the breast in extreme grief, bewail”); see plain, plaint.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: ccomplain,cmoplain,comlpain,commplain,compalin,complainn,complani,complian,compllain,compplain,copmlain,ocmplain

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of complain - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ccomplain1cmoplain2comlpain2commplain1compalin2complainn1complani2complian2
Edit distance from "complain"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "complain"?
"complain" is spelled C-O-M-P-L-A-I-N. The IPA pronunciation is /kəmˈpleɪn/.
What does "complain" mean?
As a verb, "complain" means: To express feelings of pain, dissatisfaction, or resentment.
What words are commonly confused with "complain"?
"complain" is commonly confused with "complaint", "complains", "complying". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "complain"?
The IPA (International Phonetic Alphabet) transcription for "complain" is /kəmˈpleɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "complain"?
From Middle English complaynen, from Old French complaindre, from Medieval Latin complangere (“to bewail, complain”), from Latin com- (“together”) + plangere (“to strike, beat, as the breast in extreme grief, bewail”); see plain, plaint. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “complain”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-O-M-P-L-A-I-N - every other letter order is a misspelling in standard orthography.
  • Say it as /kəmˈpleɪn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “complaint” - see the side-by-side comparison. complain vs complaint
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list