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suffix

/ˈsʌfɪks/noun, verb

suffix is spelled S-U-F-F-I-X. The wrong spelling people search most is sufix: about 130 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 41 of all searches for the word. Suffix is a noun meaning “A morpheme added at the end of a word to modify the word's meaning”. The plural of suffix is suffixes.

How many letters and syllables are in suffix?

Letters6: S-U-F-F-I-X
Syllables2 (from its American pronunciation)
In writing1.1 times per million words; the 27,150th most frequent word form
Wrong spellings searched1; the most searched, sufix, about 130 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 suffix?

Suffix is spelled S-U-F-F-I-X. One wrong spelling is searched or written often enough to measure; together they are about 1 in 41 of the searches for suffix in either form.

suffixthe right spelling5,240 searches a month
sufixa missing f130 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 suffix?

Suffix appears 1.1 times per million words in written English, the 27,150th 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 suffix?

  • /ˈsʌfɪks/

As a verb (“To append (something) to the end of something else”): /ˈsʌfɪks/, /səˈfɪks/.

Suffix has 2 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: En-us-suffix.ogg, Wikimedia Commons (author and licence on each file's page).

Forms of suffix

  • suffixes plural, present, singular, he/she/it
  • suffixing participle, present
  • suffixed participle, past

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

What does suffix mean?

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

noun

  1. 1

    A morpheme added at the end of a word to modify the word's meaning.

    The suffix "-able" changes "sing" into "singable".

  2. 2

    A subscript.

  3. 3

    A final segment of a string of characters.

    The string "abra" is both a prefix and a suffix of the string "abracadabra".

verb

  1. 1

    To append (something) to the end of something else.

  2. 2

    To cause (something) to be appended with something else at its end.

  3. 3

    To treat or use as a suffix.

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

How do you abbreviate suffix?

Wiktionary records one abbreviation of suffix: sfx.

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

Suffix in Spanish, French, German and Portuguese

LanguageWords
GermanSuffix, Postfix, Nachsilbe, Anhängsilbe (morpheme added at the end of a word to modify…), suffigieren, mit einem Suffix versehen (append (something) to the end of something else)
Portuguesesufixo (morpheme added at the end of a word to modify…), sufixar (append (something) to the end of something else)
Spanishsufijo (morpheme added at the end of a word to modify…), sufijar (append (something) to the end of something else)

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 suffix come from?

Borrowed from Latin suffīxus (“suffix”), from sub- (“under”) + fīxus (perfect passive participle of fīgere (“to fasten, fix”)), equivalent to sub- + -fix.

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

What to look up after suffix