killer

US /ˈkɪl.ɚ/
UK /ˈkɪl.ɚ/
1.

kẻ giết người

denoting a person or thing that kills.

:
a killer virus
2.

kẻ giết người

extremely difficult or unpleasant.

:
I woke up with a killer hangover
1.

kẻ giết người

a person or thing that kills.

:
police are still searching for the killer
2.

kẻ giết người

an extremely difficult or unpleasant thing.

:
that wind's a killer