As nouns the difference between fav and fas
is that fav is abbreviation of lang=en (US) or favourite (UK) while fas is plural of lang=enCategory:English plurals.
As an adjective fav
is abbreviation of lang=en (US) or favourite (UK).
As an initialism FAS is
fetal alcohol syndrome.
fav
English
Alternative forms
* fave
Noun
(
en noun)
(informal) (US) or'' favourite ''(UK) .
Adjective
(
en adjective)
(informal) (US) or'' favourite ''(UK) .