tunnel

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a passageway through or under something, usually underground (especially one for trains or cars)
  2. noun a hole made by an animal, usually for shelter
  3. verb move through by or as by digging

Etymology

From Middle French tonnelle (“net”) or tonel (“cask”), diminutive of Old French tonne (“cask”), a word of uncertain origin and affiliation. Related to Old English tunne (“tun; cask; barrel”). More at tun.

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