in plain English

US /ɪn pleɪn ˈɪŋ.ɡlɪʃ/
UK /ɪn pleɪn ˈɪŋ.ɡlɪʃ/
"in plain English" picture
1.

in simple, clear language that is easy to understand

:
Can you explain that to me in plain English?
The lawyer explained the complex legal terms in plain English.