Option

[op-shuh n] /ˈɒp ʃən/

noun
1.
the power or right of choosing.
2.
something that may be or is chosen; choice.
3.
the act of choosing.
4.
an item of equipment or a feature that may be chosen as an addition to or replacement for standard equipment and features:
a car with a long list of extra-cost options; a telephoto lens option for a camera.
5.
.
6.
a privilege acquired, as by the payment of a premium or consideration, of demanding, within a specified time, the carrying out of a transaction upon stipulated terms; the right, as granted in a contract or by an initial payment, of acquiring something in the future:
We bought one lot and took a 90-day option on an adjoining one.
7.
Football. a play in which a back has a choice of either passing or running with the ball.
verb (used with object)
8.
to acquire or grant an option on:
The studio has optioned his latest novel for film adaptation.
9.
to provide with equipment:
The car can be fully optioned at additional cost.
/ˈɒpʃən/
noun
1.
the act or an instance of choosing or deciding
2.
the power or liberty to choose
3.
an exclusive opportunity, usually for a limited period, to buy something at a future date: he has a six-month option on the Canadian rights to this book
4.
(commerce) the right to buy (call option) or sell (put option) a fixed quantity of a commodity, security, foreign exchange, etc, at a fixed price at a specified date in the future See also traded option
5.
something chosen; choice
6.
(NZ) short for local option
7.
keep one’s options open, leave one’s options open, not to commit oneself
8.
See soft option
verb
9.
(transitive) to obtain or grant an option on
n.

c.1600, “action of choosing,” from French option (Old French opcion), from Latin optionem (nominative optio) “choice, free choice, liberty to choose,” from root of optare “to desire, choose,” from PIE root *op- “to choose, prefer.” Meaning “thing that may be chosen” is attested from 1885. Commercial transaction sense first recorded 1755 (the verb in this sense is from 1934). As a North American football play, it is recorded from 1954.

command line option