Definition of "Noble" :
noun: a titled peer of the realm
adjective: impressive in appearance
"A noble tree."
adjective: having or showing or indicative of high or elevated character
"A noble spirit."
adjective: of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times
"Of noble birth."
adjective: inert especially toward oxygen
"A noble gas such as helium or neon."