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corollary

/ˈkɔɹəˌlɛɹi/noun, adjective

corollary is spelled C-O-R-O-L-L-A-R-Y. The wrong spelling people search most is correlary: about 60 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 38 of all searches for the word. Corollary is a noun meaning “A gift beyond what is actually due; an addition or superfluity”. The plural of corollary is corollaries.

How many letters and syllables are in corollary?

Letters9: C-O-R-O-L-L-A-R-Y
Syllables4 (from its American pronunciation)
In writingabout once in every 2 million words; the 39,832nd most frequent word form
Wrong spellings searched1; the most searched, correlary, about 60 Bing searches a month (all of them)

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).

How do you spell corollary?

Corollary is spelled C-O-R-O-L-L-A-R-Y. One wrong spelling is searched or written often enough to measure; together they are about 1 in 38 of the searches for corollary in either form.

corollarythe right spelling2,240 searches a month
correlaryr in place of o, e in place of l60 searches a month

Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.

How common is corollary?

Corollary appears about once in every 2 million words in written English, the 39,832nd most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce corollary?

  • /kɒˈɹɒləɹi/
  • /ˈkɒɹələɹi/
  • US /ˈkɔɹəˌlɛɹi/

Corollary has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-corollary.wav, Wikimedia Commons (author and licence on each file's page).

Forms of corollary

  • corollaries plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does corollary mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    A gift beyond what is actually due; an addition or superfluity.

  2. 2

    An a fortiori occurrence, as a result of another effort without significant additional effort.

    Finally getting that cracked window fixed was a nice corollary of redoing the whole storefront.

  3. 3

    A proposition which follows easily from the statement or proof of another proposition.

    We have proven that this set is finite and well ordered; as a corollary, we now know that there is an order-preserving map from it to the natural numbers.

adjective

  1. 1

    Occurring as a natural consequence or result; attendant; consequential.

  2. 2

    rareForming a proposition that follows from one already proved.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Corollary in Spanish, French, German and Portuguese

In the sense proposition which follows easily:

LanguageWords
Frenchcorollaire, corolaire
GermanKorollar, Folgesatz
Portuguesecorolário
Spanishcorolario

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does corollary come from?

From Middle English, from Late Latin corōllārium (“money paid for a garland; gift, gratuity, corollary; consequence, deduction”), from corōlla (“small garland”), diminutive of corōna (“crown”).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after corollary