Back
English Dictionary
Learn English
Learn grammar
List of words
Study your cards
Hang On, Man!
Audio Books
More apps
SPONSORED LINKS
Recent searches
ephemeropteran
62
calculus
SPONSORED LINKS
SPONSORED LINKS
mercy
abdominousness
mongol
abient
24th
fo
plea
Hide translation
FO
FO
/ef oʊ/
noun
(military) an officer holding the rank of major or lieutenant colonel or colonel
(
field officer
,
field-grade officer
,
FO
)
(military) an officer holding the rank of major or lieutenant colonel or colonel
Back
Next
Language