litter vs bedding

litter and bedding both are nouns.

Word	Noun	Adjective	Verb	Adverb
litter	Yes	No	Yes	No
bedding	Yes	No	No	No

As nouns, litter and bedding are synonyms defined as:

Other synonyms of litter include bedding material.

litter (noun)	bedding (noun)
material used to provide a bed for animals	coverings that are used on a bed
conveyance consisting of a chair or bed carried on two poles by bearers	material used to provide a bed for animals
the offspring at one birth of a multiparous mammal
rubbish carelessly dropped or left about (especially in public places)

litter (verb)	bedding (verb)
give birth to a litter of animals
make a place messy by strewing garbage around
strew