The term "watch" means to look intently at something or to pay attention to something very closely and carefully. This term also has several figurative meanings:
* The command to "watch your life and doctrine closely" means to be careful to live wisely. and to not believe false teachings.
* To "watch out" is a warning to be careful to avoid a danger or harmful influence.
* To "watch" or "keep watch" means to always be alert and on guard against sin and evil. It can also mean to "be ready."
* To "keep watch over" or "keep close watch" can mean to guard, protect or take care of someone or something.
* Other ways of translating "watch" could include, "pay close attention to" or "be diligent" or "be very careful" or "be on guard."