As an initialism fb is
facebook.
fd
English
===(
en)===
(
en noun)
fire department
(computing) floppy disk or floppy disc
(computing) floppy drive
Fidei Defensor : Defender of the Faith
Synonyms
* (floppy drive) FDD
Anagrams
*
fb
English
Abbreviation
(Abbreviation)
(head)
February
Anagrams
*