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PlainSpell

reactor

/ɹiˈæktɚ/noun

reactor is spelled R-E-A-C-T-O-R: 7 letters and 3 syllables. It appears 6.8 times per million words in written English, the 9,165th most frequent word form (wordfreq, 2021 data). As a noun, reactor means “A person who responds to a suggestion, stimulation or other influence” (English Wiktionary, September 2026). The plural of reactor is reactors.

How many letters and syllables are in reactor?

Letters7: R-E-A-C-T-O-R
Syllables3 (from its American pronunciation)
In writing6.8 times per million words; the 9,165th most frequent word form
Wrong spellings searchednone measured in search
Sounds like
Rhymes with
Same letters

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 reactor?

Reactor appears 6.8 times per million words in written English, the 9,165th 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 reactor?

  • US /ɹiˈæktɚ/
  • UK /ɹiːˈæktə/

Reactor has 3 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-reactor.wav, LL-Q1860_(eng)-Wodencafe-reactor.wav, Wikimedia Commons (author and licence on each file's page).

Words people confuse with reactor

Sounds like: reacter (Wiktionary's homophone list; some hold only in some accents).

Sources: English Wiktionary (homophones, alternative spellings).

What rhymes with reactor?

10 words on PlainSpell end in the same sounds as reactor from its last stressed vowel (/æktəɹ/):

Spelled with the same letters in another order: creator.

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 reactor

  • reactors plural

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

What does reactor mean?

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

noun

  1. 1

    A person who responds to a suggestion, stimulation or other influence.

  2. 2

    A structure used to contain chemical or other reactions.

  3. 3

    A device which uses atomic energy to produce heat.

  4. 4

    A chemical substance which responds to the presence of, or contact with, another substance.

  5. 5

    An electrical component with reactance

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

Reactor in Spanish, French, German and Portuguese

LanguageWords
Frenchréacteur (structure used to contain chemical or other…), réactif (chemical substance which responds to another…)
GermanReaktor (structure used to contain chemical or other…), Reagenz (chemical substance which responds to another…), Atomreaktor, Meiler, Atommeiler (device which uses atomic energy to produce heat)
Portuguesereator (structure used to contain chemical or other…), reagente, reativo (chemical substance which responds to another…)
Spanishreactor (device which uses atomic energy to produce heat)

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 reactor come from?

From react + -or.

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

What to look up after reactor