offing vs body of water

offing and body of water both are nouns.

Word	Noun	Adjective	Verb	Adverb
offing	Yes	No	No	No
body of water	Yes	No	No	No

As nouns, body of water is a hypernym of offing; that is, body of water is a word with a broader meaning than offing:

offing: the part of the sea that can be seen from the shore and is beyond the anchoring area
body of water: the part of the earth's surface covered with water (such as a river or lake or ocean)

Other hypernyms of offing include water.

offing (noun)	body of water (noun)
the part of the sea that can be seen from the shore and is beyond the anchoring area	the part of the earth's surface covered with water (such as a river or lake or ocean)
the near or foreseeable future