killer

Reading level: hard

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun someone who causes the death of a person or animal
  2. noun the causal agent resulting in death
  3. noun a difficulty that is hard to deal with

Etymology

From Middle English killer, kyller. By surface analysis, kill + -er.

In classic literature

Synonyms

slayer

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