IPA: /ˌæm.bɪˈdɛk.strəs/
KK: /æm.bɪˈdɛk.strəs/
This word describes a person who can use both hands equally well. It can also refer to someone who is very skilled at doing something.
She is ambidextrous, able to write with both her left and right hand.
Ambidextrous is formed from "ambi-" (meaning both) and "dexter" (meaning right or skillful). The word describes a person who is skilled with both hands, hence able to use both hands equally well.
Think of 'ambi-' meaning both and 'dexter' meaning skillful or right-handed. This helps you remember that ambidextrous refers to someone who can skillfully use both hands.