List of 15-letter words beginning with

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There are 10 fifteen-letter words beginning with INST

INSTANTANEITIES	• instantaneities n. Plural of instantaneity. • INSTANTANEITY n. the state of being instantaneous.
INSTANTANEOUSLY	• instantaneously adv. Without any delay; in an instantaneous manner. • INSTANTANEOUS adv. done, occurring, or acting without any perceptible duration of time.
INSTINCTIVITIES	• instinctivities n. Plural of instinctivity. • INSTINCTIVITY n. the state of being instinctive.
INSTITUTIONALLY	• institutionally adv. In an institutional manner. • institutionally adv. Throughout an institution. • INSTITUTIONAL adv. of or relating to an institution, also INSTITUTIONARY.
INSTRUCTIVENESS	• instructiveness n. The quality of being instructive. • INSTRUCTIVE n. indicating means whereby.
INSTRUCTORSHIPS	• instructorships n. Plural of instructorship. • INSTRUCTORSHIP n. the office of instructor.
INSTRUMENTALISM	• instrumentalism n. (Philosophy) In the philosophy of science, the view that concepts and theories are merely useful instruments… • INSTRUMENTALISM n. doctrine that ideas are instruments of action.
INSTRUMENTALIST	• instrumentalist n. One who plays a musical instrument, as distinguished from a vocalist. • instrumentalist n. (Philosophy) An adherent of instrumentalism. • INSTRUMENTALIST n. one who plays a musical instrument, esp. as opposed to a vocalist.
INSTRUMENTALITY	• instrumentality n. (Uncountable) The quality or condition of being instrumental; serving a purpose, being useful. • instrumentality n. (Countable, law) A governmental organ with a specific purpose. • instrumentality n. (Countable) Something that is instrumental; an instrument.
INSTRUMENTATION	• instrumentation n. The act of using or adapting as an instrument; a series or combination of instruments. • instrumentation n. The arrangement of a musical composition for performance by a number of different instruments; instrumental… • instrumentation n. The act or manner of playing upon musical instruments; performance.

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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See this list for:

English Wiktionary: 35 words
Scrabble in French: 17 words
Scrabble in Spanish: 14 words
Scrabble in Italian: 4 words
Scrabble in German: no word
Scrabble in Romanian: 42 words

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