A Prefix A Day!

Ambi-: both, around

Ambi-dextrous (adj.): using both hands with equal ease
Ambi-ance (n.): a surrounding or pervading atmosphere; environment
Ambi-guous (adj.): capable of being understood in two or more ways
Ambi-t (n.): circuit, compass; a sphere of action or influence
Ambi-vert (n.): a person like both an extrovert and introvert