Home 4-syllable words efficacy
DICTIONARY ENTRY 4 SYLLABLES

efficacy

/'ɛfəkəsi/ · ɛfəkəsi

Efficacy has 4 syllables: ef · fi · ca · cy.

ef
01
fi
02
ca
03
cy
04

noun. Capacity or power to produce a desired effect.

ADVERTISEMENT leaderboard · 728×90
ADVERTISEMENT medium rectangle · 300×250
Syl·la·ble Words A reference for counting syllables in English words. Privacy · Terms · SyllableWords.net — 2026