phase

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun any distinct time period in a sequence of events
  2. noun (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary
  3. noun a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle

Etymology

From New Latin phasis, from Ancient Greek φάσις (phásis, “an appearance”), from φαίνω (phaínō, “to cause to appear”); compare phantasm and see face.

In classic literature

Synonyms

stage

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