'option' definitions:

Definition of 'option'

From: WordNet
noun
The right to buy or sell property at an agreed price; the right is purchased and if it is not exercised by a stated date the money is forfeited
noun
One of a number of things from which only one can be chosen; "what option did I have?"; "there no other alternative"; "my only choice is to refuse" [syn: option, alternative, choice]
noun
The act of choosing or selecting; "your choice of colors was unfortunate"; "you can take your pick" [syn: choice, selection, option, pick]

Synonyms of 'option'

From: Moby Thesaurus