Phrase guide

perfect fourth

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A musical interval spanning four degrees of the diatonic scale. In the Western twelve-semitone system, it consists of five standard semitones.

Definition source: English Wiktionary via Wiktextract

Examples

  • The perfect fourth has a pitch ratio close to 4:3.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

The word perfect refers to intervals that are neither major nor minor.

Across languages

Translations

1 source translations are retained for this English entry.

  • Ancient Greek: συλλαβή (sullabḗ) — Translations