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Meaning of OS&Y | Babel Free

Noun CEFR B1

Definitions

Initialism of outside stem and yoke valve.

abbreviation, alt-of, initialism

CEFR level

B1

Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.

See also

OSA Osage Osage apple Osage City Osage County Osage Nation