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List of 15-letter words containing

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There are 10 fifteen-letter words containing A, 2F, 3I and N

DIFFERENTIATINGdifferentiating v. Present participle of differentiate.
DIFFERENTIATE v. to obtain the mathematical derivative of.
DIFFERENTIATIONdifferentiation n. The act or process of differentiating (generally, without a specialized sense).
differentiation n. (Biology) The process by which the components of multicellular life (Cells, organs, etc.) are produced…
differentiation n. (Biology, evolution) The evolutionary process by which one taxonomic group (Species, genus, variety…
DIFFRANGIBILITYdiffrangibility n. Ability to be diffracted.
DIFFRANGIBILITY n. the state of being diffrangible, capable of being diffracted or separated.
DISAFFILIATIONSdisaffiliations n. Plural of disaffiliation.
DISAFFILIATION n. the act of disaffiliating.
DISAFFIRMATIONSdisaffirmations n. Plural of disaffirmation.
DISAFFIRMATION n. the act of disaffirming.
FRENCHIFICATIONFrenchification n. The act or process of making French or more French-like, especially in informal contexts.
Frenchification n. (Slang) Something that has undergone frenchification, something that has frenchified and made more French-like.
Frenchification n. Synonym of Gallicization, translation into French or a French translation.
FRUCTIFICATIONSfructifications n. Plural of fructification.
FRUCTIFICATION n. the reproductive organs or fruit of a plant.
INEFFACEABILITYineffaceability n. Quality of being ineffaceable.
INEFFACEABILITY n. the state of being ineffaceable.
INEFFICACIOUSLYinefficaciously adv. Without efficacy or effect.
INEFFICACIOUS adv. lacking the power to produce a desired effect.
REFORTIFICATIONrefortification n. A second or subsequent fortification.
REFORTIFICATION n. the act of refortifying.

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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