

| Term | Main definition |
|---|---|
| opportunity cost | |
| or nearest offer (o.n.o) | |
| oral contract |
sözlü anlaşma
|
| order | |
| order bill of lading |
emre yazılı konşimento
|
| order book | |
| order form | |
| order number | |
| order to stop payment |
ödemeyi durdurma emri
|
| ordinary income | |
| ordinary interest |
basit faiz (360 gün üzerinden hesaplanan faiz)
|
| ordinary shares |
adi hisse senedi
|
| ordinary working hours (o. w. h) | |
| organisation |
organizasyon, teşkilat,örgüt, kuruluş
|
| organization chart |