doorstep vs doorsill

doorstep and doorsill both are nouns.

Word	Noun	Adjective	Verb	Adverb
doorstep	Yes	No	No	No
doorsill	Yes	No	No	No

As nouns, doorstep and doorsill are synonyms defined as:

doorstep and doorsill: the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway

Other synonyms of doorstep include threshold.

doorstep (noun)	doorsill (noun)
the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway	the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway