Masculine meaning : (grammar) The masculine gender. (grammar) A word of the masculine gender. That which is masculine. (possibly obsolete) A man. Of or pertaining to the male gender; manly. Of or pertaining to the male sex; biologically male, not female. Belonging to males; typically used by males. Having the qualities stereotypically associated with men: virile, aggressive, not effeminate. (grammar) Of, pertaining or belonging to the male grammatical gender, in languages that have gender distinctions.