Definition of “beg” - Learner’s Dictionary

beg

verb us uk /beɡ/ present participle begging, past tense and past participle begged
FOOD/MONEY [ I ]

B2 to ask someone for food or money, because you do not have any:

Young children were begging on the streets.
STRONG REQUEST [ I, T ]

B2 to make a very strong and urgent request:

She begged / him for help.
[ + to do sth ] I begged her not to go.
→ See also I beg your pardon.

(Definition of “beg” from the Cambridge Learner's Dictionary © Cambridge University Press)