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Optional
 optional
gen. opzionale
bank. facoltativo
| Protocol
 -protocol
IT -protocollo
 Protocol
econ. protocollo
 protocol
econ. protocollo
environ. protocollo

to phrases
optional ['ɔpʃ(ə)nəl] adj.
gen. opzionale
bank. facoltativo
comp., MS facoltativo (Pertaining to a component, parameter and so on that is not required or automatic)
 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: 109 phrases in 22 subjects
Agriculture2
Communications6
Construction2
Education5
Electronics3
Finances14
General11
Health care2
Human rights activism9
Information technology15
Insurance3
Law13
Marketing1
Microsoft5
Name of organization2
Patents2
Pharmacy and pharmacology1
Social science1
Technology1
Transport7
United Nations3
Work flow1