marlinespike vs marlingspike

marlinespike and marlingspike both are nouns.

Word	Noun	Adjective	Verb	Adverb
marlinespike	Yes	No	No	No
marlingspike	Yes	No	No	No

As nouns, marlinespike and marlingspike are synonyms defined as:

marlinespike and marlingspike: a pointed iron hand tool that is used to separate strands of a rope or cable (as in splicing)

Other synonyms of marlinespike include marlinspike.

marlinespike (noun)	marlingspike (noun)
a pointed iron hand tool that is used to separate strands of a rope or cable (as in splicing)	a pointed iron hand tool that is used to separate strands of a rope or cable (as in splicing)