introspection vs contemplation

introspection and contemplation both are nouns.

Word	Noun	Adjective	Verb	Adverb
introspection	Yes	No	No	No
contemplation	Yes	No	No	No

As nouns, contemplation is a hypernym of introspection; that is, contemplation is a word with a broader meaning than introspection:

introspection: the contemplation of your own thoughts and desires and conduct
contemplation: a calm, lengthy, intent consideration

Other hypernyms of introspection include musing, reflection, reflexion, rumination, thoughtfulness.

introspection (noun)	contemplation (noun)
the contemplation of your own thoughts and desires and conduct	a long and thoughtful observation
	a calm, lengthy, intent consideration