research

/ˈɹiːsɜːt͡ʃ/

//ˈɹiːsɜːt͡ʃ// noun

By · According to Wiktionary data (CC BY-SA) ·

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

The verdict

“research” is in the everyday core of English, ranked #402 in English word frequency and used as a noun.

#402
frequency rank, English
8
letters
12
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc. (that are currently available, or that are familiar to one's self).

Visual similarity to commonly confused words

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

research vs researcher
80% similar
research vs researches
80% similar

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

Key facts for research
PropertyValue
Headwordresearch
LanguageEnglish
Part of speechNoun
IPA/ˈɹiːsɜːt͡ʃ/
Letters8
Frequency rank#402
Misspellings tracked12
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “research” 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). research 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 research is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɹiːsɜːt͡ʃ/. Corpus data places it at rank #402 in overall English word frequency, putting it firmly in the everyday core of the language. Wiktionary records 2 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 research, with forms such as "ersearch", "reesarch", and "resaerch". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 2 confusable-pair relationships, "researcher", "researches", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Early Modern French rechercher (“to examine closely”), from Old French recerchier (“to seek, to look for”), by surface analysis, re- + search. The correct English form is research, spelled R-E-S-E-A-R-C-H.

Definition

  1. 1
    Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc. (that are currently available, or that are familiar to one's self).
  2. 2
    A particular instance or piece of research.

Etymology

Early Modern French rechercher (“to examine closely”), from Old French recerchier (“to seek, to look for”), by surface analysis, re- + search.

Synonyms

investigationexplorationexaminationstudyinquiryscrutiny

This word in other languages

investigación(Español)recherche(Français)Forschung(Deutsch)pesquisa(Português)

Common misspellings

Also misspelled as: ersearch,reesarch,resaerch,reseacrh,researcch,researchh,researhc,researrch,reserach,ressearch,rresearch,rseearch

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of research - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ersearch2reesarch2resaerch2reseacrh2researcch1researchh1researhc2researrch1
Edit distance from "research"

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 "research"?
"research" is spelled R-E-S-E-A-R-C-H. The IPA pronunciation is /ˈɹiːsɜːt͡ʃ/.
What does "research" mean?
As a noun, "research" means: Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc. (that are currently available, or that are familiar to one's self).
What words are commonly confused with "research"?
"research" is commonly confused with "researcher", "researches". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "research"?
The IPA (International Phonetic Alphabet) transcription for "research" is /ˈɹiːsɜːt͡ʃ/. 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 "research"?
Early Modern French rechercher (“to examine closely”), from Old French recerchier (“to seek, to look for”), by surface analysis, re- + search. 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 “research”

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

  • The one correct English spelling is R-E-S-E-A-R-C-H - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɹiːsɜːt͡ʃ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “researcher” - see the side-by-side comparison. research vs researcher
  • 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