optional op‧tion‧al [ˈɒpʆnəl ǁ ˈɑːp-] adjective
if something is optional, you can choose whether or not you have it, do it, or use it:

• You can have a 17-inch monitor as an optional extra (= something that is additional to or better than the basic type ) .

• The use of a password to access the system is optional.

— compare standard2

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optional UK US /ˈɒpʃənəl/ adjective
COMMERCE something that is optional is something that you can buy or do if you want to, but that you do not have to buy or do: »

Optional plug-ins cost a further $50 on average.


optional accessories/components

optional extra — Cf. optional extra

Financial and business terms. 2012.


Look at other dictionaries:

  • optional — optional …   Deutsch Wörterbuch

  • opţional — OPŢIONÁL, Ă, opţionali, e, adj. Cu caracter de opţiune; facultativ. [pr.: ţi o ] – Din fr. optionnel. Trimis de ana zecheru, 13.09.2007. Sursa: DEX 98  OPŢIONÁL adj. facultativ. (Curs opţional.) Trimis de siveco, 05.08.2004. Sursa: Sinonime … …   Dicționar Român

  • Optional — Op tion*al, a. Involving an option; depending on the exercise of an option; left to one s discretion or choice; allowed but not compulsory; as, optional studies; it is optional with you to go or stay. n. See {Elective}, n. [1913 Webster] If to… …   The Collaborative International Dictionary of English

  • optional — index discretionary, disjunctive (alternative), elective (voluntary), extraneous, needless, nonessential …   Law dictionary

  • optional — / ɑpʃənl/, it. / ɔpʃonal/ agg. e s. ingl. [propr. facoltativo , der. di option opzione, scelta ], usato in ital. come s.m. e agg. ■ s.m. 1. (comm.) [con riferimento soprattutto ad autoveicoli, componente non di serie, fornito su richiesta]… …   Enciclopedia Italiana

  • optional — (adj.) in reference to things which may be done or not done, 1792, from OPTION (Cf. option) + AL (Cf. al) (1) …   Etymology dictionary

  • optional — /ˈɔpʃonal, ingl. ˈHpʃən(J)l/ [vc. ingl., da option «opzione, scelta»] s. m. inv. (di auto) accessorio a richiesta …   Sinonimi e Contrari. Terza edizione

  • optional — [adj] possible; available as choice alternative, arbitrary, discretional, discretionary, elective, extra, facultative, free, noncompulsory, nonobligatory, no strings attached*, not required, open, unforced, unrestricted, up to the individual,… …   New thesaurus

  • optional — ► ADJECTIVE ▪ available to be chosen but not obligatory. DERIVATIVES optionality noun optionally adverb …   English terms dictionary

  • optional — [äp′shə nəl] adj. left to one s option, or choice; not compulsory; elective optionally adv …   English World dictionary

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