Meaning : Of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times.
Example :
Of noble birth.
Meaning : Having or showing or indicative of high or elevated character.
Example :
A noble spirit.
Noble deeds.
Completely lacking nobility in character or quality or purpose.
Something cowardly and ignoble in his attitude.Meaning : Inert especially toward oxygen.
Example :
A noble gas such as helium or neon.
Noble metals include gold and silver and platinum.