option, alternative, choice -- (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")
Overview of adj alternative
The adj alternative has 3 senses
alternate, alternative, substitute -- (serving or used in place of another; "an alternative plan")
alternative -- (necessitating a choice between mutually exclusive possibilities; "alternative possibilities were neutrality or war")
alternative -- (pertaining to unconventional choices; "an alternative life style")
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