- mahdi1October 2016
"Find out" means that you get information that you did not have before. For example: I just found out that my grandma died (you did not know this until someone told you. So just found out)
If you understand something you have learned it from something or someone. For example you will hopefully UNDERSTAND the difference between "understand" and "found out" after you have read this comment!
Then you can say "I just found out what the difference between found out and understand is!" Hope this helped!
mahdi1October 2016okkkkk thank you