The gender of nouns in a language is a set of two or more categories that determine agreement with modifiers. Grammatical gender has nothing to do with physical gender, but is entirely a matter of form. Where there is no need for agreement, as in Modern English, there is no grammatical gender.
In English grammar words generally do not have a gender unless specifically referred to in phrases such as "Those are his jeans". However the gender is not transferred to the noun it is merely a description.
In other languages they can be and are assigned.
The noun postmistress is a gender specific noun for a female. The noun postmaster is a gender specific noun for a male.
There is no opposite gender for the noun 'misdeed'. The noun misdeed is a neuter noun, a word with no gender.
The noun 'duke' is a gender specific noun for a male.The corresponding gender specific noun for a female is duchess.Duchess
The plural noun 'priests' is a gender noun for males; the plural gender noun for females is priestesses.
The gender specific noun for a male is count.The corresponding gender specific noun for a female is countess.The gender specific noun for a male is earl.There is no corresponding gender specific noun for a female.
There is no opposite gender noun for the noun delegate.The noun 'delegate' is a common gender noun, a word for a male or a female.
The noun 'patroness' is a gender specific noun for a female.There is no gender specific noun for a male.The noun patron is a common gender noun, a word for a male or a female.
In English the noun 'florist' is a gender-neutral occupational noun (a common gender noun).
The noun 'hostess' is a gender specific noun for a female.The corresponding gender specific noun for a male is host.The noun 'host' is also used as a common gender noun, a word for a male or a female.
The noun 'salesman' is a gender specific noun for a male.The gender specific noun for a female is 'saleswoman'.The corresponding common gender noun is 'salesperson'.
The plural noun 'plants' is a neuter gender noun, a word for something that has no gender. Although some specific plants do have a gender, the noun 'plants' is a general term for any plants.
The noun rhino (or rhinoceros) is a common gender noun, a word for either a male or a female.The gender noun for a male rhino is a bull; the gender noun for a female rhino is a cow.