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optional ['ɔpʃ(ə)nəl] adj.
gen.	fakultativa; laŭvola; malnepra; malnepras; nedeviga; nenepra; sendeviga
English thesaurus
optional ['ɔpʃ(ə)nəl] abbr.
abbr.	opsh
abbr., polym.	opt.
Optional ['ɔpʃ(ə)nəl] abbr.
abbr., insur.	o/p
mil., abbr.	O

optional: 7 phrases in 1 subject

General

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