Definition, synonyms and related words
plural of sub
"The students gathered in the basement to watch their favorite movies and eat subs."
Third-person singular simple present indicative form of sub
"He subs when he is not working at his main job."
In plain English: To sub is to take someone else's place temporarily, usually at work or school.
"He has to subs on sandwiches and coffee while he looks for his next job."