killer

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1 killer /ˈkɪlɚ/ noun
plural killers
1 killer
/ˈkɪlɚ/
noun
plural killers
Learner's definition of KILLER
[count]
: a person or thing that kills someone or something
informal : something that is very difficult
2 killer /ˈkɪlɚ/ adjective
2 killer
/ˈkɪlɚ/
adjective
Learner's definition of KILLER
always used before a noun chiefly US
informal : very impressive or appealing
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