(grammar) A division of nouns and pronouns (and sometimes of other parts of speech) into masculine or feminine, and sometimes other categories like neuter or common, and animate or inanimate.
(now sometimes proscribed) Sex (a category such as "male" or "female" into which sexually-reproducing organisms are divided on the basis of their reproductive roles in their species).
Identification as a man, a woman or something else, and association with a (social) role or set of behavioral and cultural traits, clothing, etc; a category to which a person belongs on this basis. (Compare gender role, gender identity.)
(hardware) The quality which distinguishes connectors, which may be male (fitting into another connector) and female (having another connector fit into it), or genderless/androgynous (capable of fitting together with another connector of the same type).
To assign a gender to (a person); to perceive as having a gender; to address using terms (pronouns, nouns, adjectives...) that express a certain gender.
Sound uttered by the mouth, especially by human beings in speech or song; sound thus uttered considered as possessing some special quality or character
Sound made through vibration of the vocal cords; sonant, or intonated, utterance; tone; β distinguished from mere breath sound as heard in whispering and voiceless consonants.
(grammar) A particular way of inflecting or conjugating verbs, or a particular form of a verb, by means of which is indicated the relation of the subject of the verb to the action which the verb expresses.