The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

Unauthorized weapon DISCHARGE
Westworld Season 2, Episode 7

Okay, I'm gonna go
get your DISCHARGE papers.
The Big Bang Theory Season 2, Episode 9

So your mirth is merely a DISCHARGE
of nervous energy...
The Big Bang Theory Season 4, Episode 23

It's actually yellow DISCHARGE.
The Big Bang Theory Season 11, Episode 14