/ˌɑpəˈreɪʃənl/ – adjective
Definition: Hoạt động, liên quan đến việc thực thi, thực hiện.
A more thorough explanation: 1. if something is operational then it is working
2. relating to something being used, active, or operating; relating to a particular activity; relating to work
Example: 1. The new railway line is due to be operational in 2026.
2. The police dog was withdrawn from operational duties immediately after the attack.