cis

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun an alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
  2. noun a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second

Etymology

From Latin cis (“on this side (of), on the near or same side”). Doublet of he, it, here, hither, and hence.

In classic literature

Synonyms

Commonwealth of Independent States

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