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Meaning of upper boundary | Babel Free

Noun CEFR B2

Definitions

  1. The most ancient time encompassed by a given period of time.
  2. The most recent time encompassed by a given geological period.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Upper Broughton Upper Bun-ayan Upper Burnie Upper Bylong upper camel case Upper Canada

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