Killer
/ˈkɪlə(ɹ)/
noun
One who or that which kills.
“Carbon monoxide is a silent killer.”
That which causes stress or is extremely difficult, especially that which may cause failure at a task.
“That test was a killer.”
Something that is so far ahead of its competition that it effectively kills off that competition.
“Digital streaming platforms are CD killers.”
Synonyms: assassin, murderer, halant, virama, vowel killer
adjective
Excellent, very good, cool.
“killer feature”
Causing death, destruction, or obliteration.
“killer bee”
Distressing, uncomfortable.
“I had a killer headache this morning.”
noun
A sea mammal related to dolphins and porpoises (Orcinus orca).
Synonyms: Orcinus orca, orca