seabed vs sea floor

seabed and sea floor both are nouns.

Word	Noun	Adjective	Verb	Adverb
seabed	Yes	No	No	No
sea floor	Yes	No	No	No

As nouns, seabed and sea floor are synonyms defined as:

Other synonyms of seabed include Davy Jones's locker, Davy Jones, ocean bottom, ocean floor, sea bottom.

seabed (noun)	sea floor (noun)
the bottom of a sea or ocean	the bottom of a sea or ocean