direct vs starboard

direct is not a noun while starboard is a noun.

Word	Noun	Adjective	Verb	Adverb
direct	No	Yes	Yes	Yes
starboard	Yes	Yes	Yes	No

As verbs, starboard is a hyponym of direct; that is, starboard is a word with a more specific, narrower meaning than direct:

Other hyponyms of direct include dock, sheer, pull over, helm, crab, navigate, stand out, conn, navigate, pilot, channel, corner, tree, park.

direct (noun)	starboard (noun)
	the right side of a ship or aircraft to someone who is aboard and facing the bow or nose

direct (adjective)	starboard (adjective)
direct in spatial dimensions; proceeding without deviation or interruption; straight and short	located on the right side of a ship or aircraft
(of a current) flowing in one direction only
straightforward in means or manner or behavior or language or action
similar in nature or effect or relation to another quantity
in a straight unbroken line of descent from parent to child
moving from west to east on the celestial sphere; or--for planets--around the sun in the same direction as the Earth
lacking compromising or mitigating elements
in precisely the same words used by a writer or speaker
having no intervening persons, agents, conditions
being an immediate result or consequence

direct (verb)	starboard (verb)
plan and direct (a complex undertaking)	turn to the right, of helms or rudders
specifically design a product, event, or activity for a certain public
command with authority
give directions to; point somebody into a certain direction
put an address on (an envelope)
point or cause to go (blows, weapons, or objects such as photographic equipment) towards
intend (something) to move towards a certain goal
guide the actors in (plays and films)
lead, as in the performance of a composition
take somebody somewhere
cause to go somewhere
direct the course; determine the direction of travelling
govern or manage

direct (adverb)	starboard (adverb)
without deviation