Definitions
1.nounA proposition proved or accepted for immediate use in the proof of some other proposition.
2.nounThe canonical form of an inflected word; i.e., the form usually found as the headword in a dictionary, such as the nominative singular of a noun, the bare infinitive of a verb, etc.
3.noun(psycholinguistics) The theoretical abstract conceptual form of a word, representing a specific meaning, before the creation of a specific phonological form as the sounds of a lexeme, which may find representation in a specific written form as a dictionary or lexicographic word.
4.nounThe outer shell of a fruit or similar body.
5.nounOne of the specialized bracts around the floret in grasses.