response

US /rɪˈspɑːns/
UK /rɪˈspɑːns/
"response" picture
1.

a verbal or written answer

:
I sent an email, but I haven't received a response yet.
Her immediate response was a smile.
2.

a reaction to something

:
The drug produced a positive response in patients.
The emergency services had a rapid response to the accident.