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Meaning of HFO | Babel Free

Noun CEFR C2

Definitions

  1. Initialism of heavy fuel oil.
  2. Initialism of hydrofluoroolefin.
  3. Initialism of high-frequency oscillation.
  4. Initialism of hands-free orgasm.

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
See all C2 English words →

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