find out

find out  {v.}

1. To learn or discover (something you did not know before.)

One morning the baby found out for the first time that she could walk.

I don't know how this car works, but I'll soon find out.

He watched the birds to find out where they go.

Mary was angry when Jane found out her secret.

2. To get facts; to get facts about.

He wrote to find out about a job in Alaska.

She found out how much the house would cost.

3. To discover (someone) doing wrong; catch.

Some children are bad when no one is watching them, but they are usually found out.