HyperDic: optional

English > 1 sense of the word *optional*:
ADJECTIVE	all	optional	possible but not necessary

optional > pronunciation
Sounds	aa'pshahnahl; ao'pshahnahl
Rhymes	abdominal ... zoological: 2115 rhymes with ahl...

English > *optional*: 1 sense > adjective 1
Meaning	possible but not necessary; left to personal choice.
Narrower	elective, facultative	not compulsory
	ex gratia	As a favor
	nonmandatory, nonobligatory	not required by rule or law
Opposite	obligatory	morally or legally constraining or binding
Spanish	opcional, optativo
Catalan	opcional, optatiu
Adverbs	optionally	in an optional manner