variant

Showing variety, diverse.

Showing deviation or disagreement.

Variable.obsolete

Covariant and/or contravariant.

Something that is slightly different from a type or norm.

• All breeds of dog are variants of the species “Canis lupus familiaris”.

A different sequence of a gene (locus).

• Most train operators have reduced services with emergency timetables, as they struggle to cope with a rapid increase in staff absences due to the Omicron variant of COVID.

A variable that can hold any of various unrelated data types.

One of a set of words or other linguistic forms that conveys the same meaning or serves the same function.

• The word "kerosine" is a variant of “kerosene”.