人[rén]=himan being,person ,peolpe,man,etc 忍[rěn] = bear; endure; tolerate; put up with .etc 刃[rèn] = the edge of a knife, sword, etc.; BTW what kind of ren you refer to

ren：1 人 human ，people ，person 2 忍 suffer 3认 4仁： kindhearted 5刃： the rim of the knife

The most common one i think means people ,human

A lot of meanings. Can't you be more specific?

Ren means 一撇一捺！