| opportunity set | set melepas | NIAGA |
| opportunity returns | pulangan melepas | EKO |
| opportunity rate of returns | kadar pulangan melepas | EKO |
| opportunity rate | kadar melepas | NIAGA |
| opportunity loss | kerugian melepas | EKO, NIAGA |
| opportunity cost of capital | kos modal melepas | NIAGA |
| opportunity cost doctrine | doktrin kos melepas | EKO |
| opportunity cost | kos (me)lepas | AEKO, EKO, EKOI, NIAGA, PERD |
| opportunity | peluang | AEKO, EKO |
| time opportunity cost | kos melepas masa | EKO |