15-Letter Words Starting With I

Here's the list of all the 497 15-Letter Words Starting With I in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
internationally
1. worldwide
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instrumentation
1. an artifact (that is instrumental in accomplishing some end) for accomplishing some end
2. the act of providing or using the instruments needed for some implementation
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interconnection
1. a state of being connected reciprocally
2. (computer science) the act of interconnecting (wires or computers or theories etc.)
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interchangeable
1. (mathematics, logic) such that the arguments or roles can be interchanged
2. capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
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intercollegiate
1. used of competition between colleges or universities
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15-Letter Words Starting With I