Work at has 2 different meanings across 1 category:
Verb
Verb
1
to exert effort in order to do, make, or perform something
"the child worked at the multiplication table until she had it down cold"
2
To make a physical or mental effort to progress some specified task; to endeavor or struggle on an issue or project.
Broader Terms (hypernyms)
Narrower Terms (hyponyms)