Assert (4)

'assert' is the definition.
(I know that assert can be written as avow)
This is all the clue.
(Other definitions for avow that I've seen before include "Make a promise" , "Assert/confess openly" , "Assert - admit" , "Solemnly declare" , "Declare - affirm" .)
'assert' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for aver that I've seen before include "Swear" , "State firmly, perhaps rave" , "Assert, state as true" , "Maintain - state" , "State; say" .)
'assert' is the definition.
(I know that assert can be written as insist)
This is all the clue.
(Other definitions for insist that I've seen before include "Urge" , "Persist in pressing" , "Refuse to give way" , "express convinced viewpoint" , "Put one's foot down" .)
'assert' is the definition.
(synonyms)
This is all the clue.
(Other definitions for affirm that I've seen before include "State as a fact, assert" , "Emphatically state" , "Ratify; vouch" , "Declare one's commitment (to)" , "Verify" .)
'assert' is the definition.
(I know that allege is a more specific form of the action assert)
This is all the clue.
(Other definitions for allege that I've seen before include "Cite in discussion" , "State as a fact without proof" , "Accuse without established proof" , "Assert - maintain" , "Assert, state without proof" .)