conception (n)

Definition: the act of becoming pregnant

concept (n)
conception (n)
construct (n)

Definition: an abstract or general idea inferred or derived from specific instances

creation (n)
conception (n)

Definition: the event that occurred at the beginning of something
Example: from its creation the plan was doomed to failure.

conception (n)
design (n)
excogitation (n)
innovation (n)
invention (n)

Definition: the creation of something in the mind