Meaning of “litter” - Learner’s Dictionary

litter

noun uk us /ˈlɪtər/
WASTE [ U ]

B2 pieces of paper and other waste that are left in public places

ANIMALS [ C ]

a group of baby animals that are from the same mother and born at the same time:

a litter of kittens/puppies

(Definition of “litter noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)