Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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-in1 any of various chemical substances or minerals, including certain proteins, enzymes, antibiotics, and pharmaceuticals. [2 definitions]
-in2 organized public activity of (such) a type, often as a means of demonstrating approval or protest.
-ine2 used in the names of chemical elements and compounds and other substances. [2 definitions]
in used to indicate inclusion within a space or area. [12 definitions]
In symbol of the chemical element indium.
IN abbreviation of "Indiana," a Midwestern U.S. state between Illinois and Ohio.
in-1 in; on; into. [2 definitions]
in-2 not; without.
in. abbreviation of "inch," or "inches," a unit of length equal to one twelfth of a foot or 2.54 centimeters.
Indiana a Midwestern U.S. state between Illinois and Ohio. (abbr.: IN)