

You need to study; otherwise, you will fail the test.
In a different way or manner; if not.
You should wear a coat; otherwise, you'll be cold.
Finish your homework; otherwise, you can't go out.
He needs to apologize; otherwise, she won't forgive him.
do otherwise
think otherwise
act otherwise
alternatively
if not
in other respects
You should leave now; otherwise, you will be late.
Used to introduce a condition that would change the situation.
Finish your homework; otherwise, you can't play outside.
You need to study; otherwise, you might fail the test.
Wear a coat; otherwise, you'll catch a cold.
do it otherwise
think otherwise
act otherwise
if not
or else
alternatively