διακρίνω/diakrinō

This word is an action. It is a verb.

This word means to judge.
This word means to discern. This means to recognize a difference between one thing and something else.
This word means to seriously disagree with someone.
This word means to doubt.
- It sometimes is used to talk about thinking that something might not be true.
- It sometimes is used to talk about not being sure about something. That is, a person sometimes thinks one thing and sometimes thinks another thing.