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Meaning of QSO | Babel Free

Noun CEFR A2

Definitions

Initialism of quasi-stellar object (“a quasar”).
abbreviation, alt-of, initialism
A radio-quiet quasar.
dated

CEFR level

A2

Elementary
This word is part of the CEFR A2 vocabulary — elementary level.

See also

QSQT QSR QSS QST QSU Qt