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PlainSpell

harness

/ˈhɑɹ.nəs/noun, verb

harness is spelled H-A-R-N-E-S-S: 7 letters and 2 syllables. It appears 4.7 times per million words in written English, the 11,685th most frequent word form (wordfreq, 2021 data). As a noun, harness means “A restraint or support, especially one consisting of a loop or network of rope or straps, and especially one worn by a working animal such as a horse…” (English Wiktionary, September 2026). The plural of harness is harnesses.

How many letters and syllables are in harness?

Letters7: H-A-R-N-E-S-S
Syllables2 (from its American pronunciation)
In writing4.7 times per million words; the 11,685th most frequent word form
Wrong spellings searchednone measured in search
Rhymes with

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); rhymes and same-letter words are computed by PlainSpell from its own word list.

How common is harness?

Harness appears 4.7 times per million words in written English, the 11,685th 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 harness?

  • UK /ˈhɑː.nəs/
  • US /ˈhɑɹ.nəs/
  • Australia /ˈhɐː.nəs/

Harness 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-harness.ogg, Wikimedia Commons (author and licence on each file's page).

What rhymes with harness?

One word on PlainSpell end in the same sounds as harness from its last stressed vowel (/ɑɹnəs/):

Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).

Forms of harness

  • harnesses plural, present, singular, he/she/it
  • harnass
  • harnessing participle, present
  • harnessed participle, past

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

What does harness mean?

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

noun

  1. 1

    A restraint or support, especially one consisting of a loop or network of rope or straps, and especially one worn by a working animal such as a horse pulling a carriage or farm implement.

  2. 2

    A collection of wires or cables bundled and routed according to their function: a wiring harness.

  3. 3

    datedThe complete dress, especially in a military sense, of a man or a horse; armour in general.

  4. 4

    The part of a loom comprising the heddles, with their means of support and motion, by which the threads of the warp are alternately raised and depressed for the passage of the shuttle.

  5. 5

    Equipment for any kind of labour.

  6. 6

    A software framework.

    test harness

  7. 7

    A system designed to manage the use of AI agents, specifically in software development.

    harness engineering

verb

  1. 1

    To place a harness on something; to tie up or restrain.

    They harnessed the horse to the post.

  2. 2

    To capture, control or put to use.

    Imagine what might happen if it were possible to harness solar energy fully.

  3. 3

    To equip with armour.

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

Harness in Spanish, French, German and Portuguese

LanguageWords
Frenchharnais (restraint or support), harnacher (to place a harness on something)
GermanGeschirr, Pferdegeschirr, Gurt, Anschnallgurt (restraint or support), vorspannen (to place a harness on something), Harnisch (armour)
Portuguesearnês, arreios (restraint or support), arrear, atrelar (to place a harness on something), aproveitar (to control or put to use)
Spanisharnés (restraint or support), arrear, aparejar (to place a harness on something), aprovechar, explotar, utilizar (to control or put to use)

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 harness come from?

From Middle English harneys, harnes, harneis, harnais, herneis, from Anglo-Norman harneis and Old French hernois (“equipment used in battle”), believed to be from Old Norse *hernest, from herr (“army”) + nest (“provisions”) (from Proto-Germanic *nesaną (“to heal, recover”)). More at harry.

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

What to look up after harness