As a noun assertion
is the act of asserting, or that which is asserted; positive declaration or averment; affirmation; statement asserted; position advanced.
As a verb confirm is
to strengthen; to make firm or resolute.
Other Comparisons: What's the difference?
The act of asserting, or that which is asserted; positive declaration or averment; affirmation; statement asserted; position advanced.
Maintenance; vindication; as, the assertion of one's rights or prerogatives.
(computing) A statement in a program asserting a condition expected to be true at a particular point, used in debugging.
* confirme (obsolete)
To strengthen; to make firm or resolute.
(Christianity) To administer the sacrament of confirmation on (someone).
* 1971 , , Religion and the Decline of Magic , Folio Society 2012, p. 35:
To assure the accuracy of previous statements.
- Elizabeth, daughter of Henry VIII, was baptized and confirmed at the age of three days.