find out

verb5

1. •
   To discover, as by asking or investigating.

   • I don't know who the twenty-first president of the United States was, but it should be very easy to find out.
2. •
   To discover or expose (someone) as disobedient, dishonest, etc.

   • He had been fiddling the books for years, but finally he was found out.
3. •
   To uncover a weakness in (someone).

   • He may cope with the multiple choice questions, but the written exam will find him out.
   • If you don't try, you do not find it out.
4. •
   (slang) To receive the consequences of one's actions.

   • With the way he behaved, it's no wonder he found out.
5. •
   (no longer used) To discover (something), as by perceiving or coming upon it.