(computing) A debugging mechanism whereby execution is suspended every time a specified memory location is modified; or, any of various similar such mechanisms.
Watchpoints are frequently called “data breakpoints" (similar) and treated as a type of breakpoint; however, they are also frequently contrasted with breakpoints. In either case, the meaning of watchpoint is the same; the discrepancy is due to differing uses of the term breakpoint.
Watchpoint. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/watchpoint
watchpoint - Computer Definition
An option in certain debuggers that allows the programmer to stop the program when a specified data area is being accessed for reading or writing. It is a breakpoint for data rather than code. See breakpoint and watch variable.