What does "assertion" mean?

The act of asserting; positive declaration or averment.

Assertion

Common synonyms include: averment, statement, a priori principle, accusation, act of asserting, address.

/əˈsɜːʃən/ noun

noun ·Common ·High school level

Noun

1
The act of asserting; positive declaration or averment. countable, uncountable
2
a declaration that is made emphatically (as if no supporting evidence were necessary) wordnet
3
Something which is asserted; a declaration; a statement asserted. countable, uncountable
"You're a man of strong assertions!"
4
the act of affirming or asserting or stating something wordnet
5
A statement or declaration which lacks support or evidence. countable, uncountable
"That's just a bare assertion."

Show 3 more definitions

6
Maintenance; vindication. countable, uncountable
"the assertion of one's rights or prerogatives"
7
A statement in a program asserting a condition expected to be true at a particular point, used in debugging. countable, uncountable
"The user should be absolutely confident that the error issued is a real design error. In other words, a user should be confident that his assertion code is correct and that the assertion failure is not a false condition."
8
The set of information that the statement preparer is providing in a financial statement audit. countable, uncountable

"It is important to note that his assertion is groundless."

From Middle English assercioun, from Latin assertiō. By surface analysis, assert + -ion.