concertina

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun coiled barbed wire used as an obstacle
  2. noun free-reed instrument played like an accordion by pushing its ends together to force air through the reeds
  3. verb collapse like a concertina

Etymology

From concert + -ina.

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