outboard vs portable

outboard and portable both are nouns.

Word	Noun	Adjective	Verb	Adverb
outboard	Yes	Yes	No	No
portable	Yes	Yes	No	No

outboard (noun)	portable (noun)
internal-combustion engine that mounts at stern of small boat	a small light typewriter; usually with a case in which it can be carried
a motorboat with an outboard motor

outboard (adjective)	portable (adjective)
located away from the midline of a vessel or aircraft	easily or conveniently transported
	of a motor designed to be attached to the outside of a boat's hull