find out

verb

1. establish after a calculation, investigation, experiment, survey, or study"find the product of two numbers"
2. get to know or become aware of, usually accidentally"I learned that she has two grown-up children"
3. find out, learn, or determine with certainty, usually by making an inquiry or other effort"I want to see whether she speaks French"
4. trap; especially in an error or in a reprehensible act"He was caught out"