| operating ratio | Tiada | Tiada | nisbah kendalian | Pentadbiran Perniagaan |
| operating characteristics | ciri pengoperasian | Tiada | ciri pengoperasian | Matematik |
| operating environment | lingkungan pengoperasian | suasana pengendalian | persekitaran pengendalian | Teknologi Maklumat |
| operating characteristic | ciri pengoperasian | ciri pengoperasian | ciri pengoperasian | Biologi |
| operating time circuit breaker | pemutus arus waktu operasi | pemutus litar masa kendalian | pemutus litar masa kendalian | Kejuruteraan |
| operating system (OS) | sistem operasi (SO) | sistem pengendalian | sistem pengendalian | Teknologi Maklumat |
| operating system | sistem operasi (OS) | sistem pengendalian | sistem pengendalian | Teknologi Maklumat |
| operating condition | kondisi operasi | keadaan operasi | keadaan kendalian | Kejuruteraan |
| operating point | titik operasi | titik pengendalian | titik pengendalian | Kejuruteraan |
| operating line | garis operasi | garis kendalian | garis kendalian | Kejuruteraan |