Generalization

[Tanya Shivari]

The act or process of generalizing; the act of
bringing individuals or particulars under a genus or class; deduction
of a general principle from particulars.

[Sarah]

a written or spoken statement in which you say or write that something is true all of the time when it is only true some of the time:

[Rihanna]

A general statement or concept obtained by inference from specific cases.