Words That Start with EFF

Browse 88 playable English words starting with the prefix EFF, including Effective, Effects, Effort, Efficiency, Efficient, Effectiveness and Efficacy. Validated for Scrabble, Wordle, crosswords, and daily writing, each entry includes letter counts and definitions below.

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Starts with EFF
1 words
eff
Starts with EFFA5 words
efface
effacement
effaceable
effable
effacer
Starts with EFFE24 words
effect
effective
effects
effectively
effectiveness
effervescent
effectual
effeminate
effervescence
effete
effector
effectually
effectuate
effectivity
effervesce
effeminacy
effendi
efferent
effectuation
effer
effervescently
effeteness
effeminateness
effeminately
Starts with EFFI14 words
efficiency
efficient
efficiently
efficacy
effigy
effing
efficacious
efficaciously
efficaciousness
efficacity
effigurate
effigial
effiguration
effierce
Starts with EFFL10 words
effluent
efflorescence
effluvium
effluence
efflux
effluxion
effloresce
effleurage
effluvial
efflorescent
Starts with EFFO8 words
effort
effortlessly
effortless
effortful
effortlessness
effortfully
effortfulness
efforce
Starts with EFFR2 words
effrontery
effray
Starts with EFFU10 words
effusive
effusion
effulgence
effulgent
effusively
effuse
effusiveness
effulge
effulgently
effusiometer
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Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.