safety vs harbourage

safety and harbourage both are nouns.

Word	Noun	Adjective	Verb	Adverb
safety	Yes	No	No	No
harbourage	Yes	No	No	No

As nouns, harbourage is a hyponym of safety; that is, harbourage is a word with a more specific, narrower meaning than safety:

Other hyponyms of safety include harborage.

safety (noun)	harbourage (noun)
(baseball) the successful act of striking a baseball in such a way that the batter reaches base safely	(nautical) a place of refuge (as for a ship)
a score in American football; a player is tackled behind his own goal line
a device designed to prevent injury or accidents
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
a safe place
the state of being certain that adverse effects will not be caused by some agent under defined conditions