OPEN MARKET, OPEN-END, OPENING, OPENING STOCK, OPERATING EXPENSES, OPERATING LOSS, OPERATING PROFIT, OPERATION, OPPOSITE PAGE, OPTICAL CHARACTER READER (OCR), OPTICAL CHARACTER RECOGNITION (OCR), OPTION, OPTION CLAUSE, ORDER, ORDERED EDITION, ORIGINAL, ORIGINATION, ORIGINATION COSTS, ORNAMENTED TYPEFACE, ORPHAN, OS, OUT OF COPYRIGHT, OUT OF DATE, OUT OF PRINT (OP), OUT OF REGISTER, OUT OF STOCK (OS), OUTER FORME, OUTER MARGIN, OUTLAY, OUTLET - Ангельска-беларускі слоўнік выдавецкіх і паліграфічных тэрмінаў - Белорусские словари