List of 13-letter words beginning with

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There are 12 thirteen-letter words beginning with EF

EFFECTIVENESS	• effectiveness n. The property of being effective, of achieving results. • effectiveness n. The capacity or potential for achieving results. • effectiveness n. The degree to which something achieves results.
EFFECTIVITIES	• effectivities n. Plural of effectivity. • EFFECTIVITY n. the state of being effective.
EFFECTUALNESS	• effectualness n. The state or condition of being effectual. • EFFECTUALNESS n. the state of being effectual.
EFFECTUATIONS	• effectuations n. Plural of effectuation. • EFFECTUATION n. the act of effectuating.
EFFERVESCENCE	• effervescence n. The escape of gas from solution in a liquid, especially the escape of carbon dioxide from a carbonated drink. • effervescence n. Vivacity. • effervescence n. Foment.
EFFERVESCENCY	• effervescency n. (Archaic) effervescence. • EFFERVESCENCY n. boiling or bubbling, also EFFERVESCENCE.
EFFERVESCIBLE	• effervescible adj. Capable of effervescing. • EFFERVESCIBLE adj. capable of effervescing.
EFFICACIOUSLY	• efficaciously adv. In an efficacious manner. • EFFICACIOUS adv. having the power to produce a desired effect.
EFFIGURATIONS	• EFFIGURATION n. an elaborate, detailed description of an object or an event.
EFFLORESCENCE	• efflorescence n. (Chemistry) The formation of a powdery surface on crystals, as a hydrate is converted to anhydrous form… • efflorescence n. (Botany) The production of flowers. • efflorescence n. (Construction) An encrustation of soluble salts, commonly white, deposited on the surface of stone…
EFFORTFULNESS	• effortfulness n. (Psychology) subjective experience of exertion or effort involved in performing an activity. • EFFORTFUL n. requiring effort.
EFFUSIOMETERS	• effusiometers n. Plural of effusiometer. • EFFUSIOMETER n. an instrument for comparing the molecular weights of gases.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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English Wiktionary: 41 words
Scrabble in French: 81 words
Scrabble in Spanish: 20 words
Scrabble in Italian: 54 words
Scrabble in German: no word
Scrabble in Romanian: 29 words

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