monkey bridge vs flybridge

monkey bridge and flybridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
monkey bridge	Yes	No	No	No
flybridge	Yes	No	No	No

As nouns, monkey bridge and flybridge are synonyms defined as:

monkey bridge and flybridge: the highest navigational bridge on a ship; a small (often open) deck above the pilot house

Other synonyms of monkey bridge include fly bridge, flying bridge.

monkey bridge (noun)	flybridge (noun)
a high narrow platform above a deck or in an engine room or boiler room	the highest navigational bridge on a ship; a small (often open) deck above the pilot house
the highest navigational bridge on a ship; a small (often open) deck above the pilot house