debt limit vs debt ceiling

debt limit and debt ceiling both are nouns.

Word	Noun	Adjective	Verb	Adverb
debt limit	Yes	No	No	No
debt ceiling	Yes	No	No	No

As nouns, debt limit and debt ceiling are synonyms defined as:

debt limit and debt ceiling: the maximum borrowing power of a governmental entity

debt limit (noun)	debt ceiling (noun)
the maximum borrowing power of a governmental entity	the maximum borrowing power of a governmental entity