contrivance vs conception

contrivance and conception both are nouns.

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

As nouns, conception is a hypernym of contrivance; that is, conception is a word with a broader meaning than contrivance:

Other hypernyms of contrivance include design, excogitation, innovation, invention.

contrivance (noun)	conception (noun)
the act of devising something	the act of becoming pregnant; fertilization of an ovum by a spermatozoon
a device or control that is very useful for a particular job	an abstract or general idea inferred or derived from specific instances
any improvised arrangement for temporary use	the creation of something in the mind
an elaborate or deceitful scheme contrived to deceive or evade	the event that occurred at the beginning of something
the faculty of contriving; inventive skill
an artificial or unnatural or obviously contrived arrangement of details or parts etc.