"litters" in the noun sense
the offspring at one birth of a multiparous mammal
rubbish carelessly dropped or left about (especially in public places)
conveyance consisting of a chair or bed carried on two poles by bearers
4. bedding material, bedding, litter
material used to provide a bed for animals
"litters" in the verb sense
"Cigar butts littered the ground"
make a place messy by strewing garbage around
give birth to a litter of animals
Source: WordNet® (An amazing lexical database of English)
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