invention vs conception

invention and conception both are nouns.

Word	Noun	Adjective	Verb	Adverb
invention	Yes	No	No	No
conception	Yes	No	No	No

As nouns, invention and conception are synonyms defined as:

Other synonyms of invention include design, excogitation, innovation.

invention (noun)	conception (noun)
the act of inventing	the act of becoming pregnant; fertilization of an ovum by a spermatozoon
a creation (a new device or process) resulting from study and experimentation	an abstract or general idea inferred or derived from specific instances
the creation of something in the mind	the creation of something in the mind
	the event that occurred at the beginning of something