three-phase

adj

"three-phase" is a 10-letter English headword indexed on PlainSpell.

The verdict

“three-phase” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Using three separate alternating currents of the same voltage at different phases.

Corpus desk

Index EN-three-phase · three-phase · English

three-phase · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for three-phase
PropertyValue
Headwordthree-phase
LanguageEnglish
Part of speechAdjective
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “three-phase” in English

three-phasesits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

three-phase is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Using three separate alternating currents of the same voltage at different phases.".

three-phase doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Our source data has no etymology on file for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is three-phase, spelled T-H-R-E-E---P-H-A-S-E.

Definition

  1. 1
    Using three separate alternating currents of the same voltage at different phases.

Recorded use

Wiktionary example

These source excerpts show how three-phase appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. By the end of the year all new electrification projects were virtually complete and conversion of the remaining three-phase 3,700V a.c. sections to 3,000V d.c. was well in hand.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "three-phase"?
"three-phase" is spelled T-H-R-E-E---P-H-A-S-E.
What does "three-phase" mean?
As an adjective, "three-phase" means: Using three separate alternating currents of the same voltage at different phases.
What language does "three-phase" come from?
"three-phase" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list