fo'c'sle vs forecastle

fo'c'sle and forecastle both are nouns.

Word	Noun	Adjective	Verb	Adverb
fo'c'sle	Yes	No	No	No
forecastle	Yes	No	No	No

As nouns, fo'c'sle and forecastle are synonyms defined as:

fo'c'sle and forecastle: living quarters consisting of a superstructure in the bow of a merchant ship where the crew is housed

fo'c'sle (noun)	forecastle (noun)
living quarters consisting of a superstructure in the bow of a merchant ship where the crew is housed	living quarters consisting of a superstructure in the bow of a merchant ship where the crew is housed