(noun, adjective)


1. (slang) Excellent, very good.

2. Causing death, destruction, or obliteration.


1. someone who causes the death of a person or animal

Similar word(s): slayer

Definition categories: person, individual, mortal, somebody, someone, soul

2. the causal agent resulting in death

- heart disease is the biggest killer in the United States

Definition categories: state, cause

3. a difficulty that is hard to deal with

- that exam was a real killer

Definition categories: thought, difficulty

4. predatory black-and-white toothed whale with large dorsal fin; common in cold seas

Similar word(s): grampus, orca

Definition categories: animal, dolphin

Sentences with killer as a noun:

- There’s a killer on the loose.

- My cat is a habitual bird killer.

- Carbon monoxide is a silent killer.

- That test was a killer.

- The final hill in the race course was a killer.

- Various means had were used to steer aircraft in the early years but ailerons were the killer.

- So, for example, an invisible ǎthaq “killer” (virama) (U+1039) is not inserted between initial and medial consonants. — have previously shown that there is no “virama” sign as a general “killer” in Khmer script, unlike, for example, in Devanagari script. — virama U+1039 MYANMAR SIGN VIRAMA also participates in some common constructions where it