Meaning of JO1 | Babel Free

Definitions

1. Abbreviation of jail officer, grade one (“prison guard”) The lowest grade of jail officers, the entry level jail officer.
   Philippines, abbreviation, alt-of
2. Abbreviation of journalist, petty officer, first class A journalist of the U.S. Navy holding the rating of first class petty officer, the highest class of regular petty officer.
   US, abbreviation, alt-of
3. Abbreviation of junior officer, 1, junior officer, grade one, junior officer, first class, or etc..
   abbreviation, alt-of

CEFR level