1. Noun
One who deprives of life; one who, or that which, kills.
2. Noun
A voracious, toothed whale of the genus Orca, of which several species are known.
3. Noun
predatory black-and-white toothed whale with large dorsal fin; common in cold seas
Vocabulary classified under Nature and environment
4. Noun
a difficulty that is hard to deal with; "that exam was a real killer"
Vocabulary classified under Environmental science
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