halibut vs holibut

halibut and holibut both are nouns.

Word	Noun	Adjective	Verb	Adverb
halibut	Yes	No	No	No
holibut	Yes	No	No	No

As nouns, halibut and holibut are synonyms defined as:

halibut and holibut: marine food fish of the northern Atlantic or northern Pacific; the largest flatfish and one of the largest teleost fishes

halibut (noun)	holibut (noun)
marine food fish of the northern Atlantic or northern Pacific; the largest flatfish and one of the largest teleost fishes	marine food fish of the northern Atlantic or northern Pacific; the largest flatfish and one of the largest teleost fishes
lean flesh of very large flatfish of Atlantic or Pacific