I. intransitive verb Etymology: French ~er, from Latin ~are Date: 1877 to make a choice, II. abbreviation ~ical; ~ician; ~ics, ~ion; ~ional
OPT
Meaning of OPT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012