lodgement vs allegation

lodgement and allegation both are nouns.

Word	Noun	Adjective	Verb	Adverb
lodgement	Yes	No	No	No
allegation	Yes	No	No	No

As nouns, allegation is a hypernym of lodgement; that is, allegation is a word with a broader meaning than lodgement:

lodgement: the state or quality of being lodged or fixed even temporarily
allegation: (law) a formal accusation against somebody (often in a court of law)

Other hypernyms of lodgement include fastness, fixedness, fixity, fixture, secureness.

lodgement (noun)	allegation (noun)
the state or quality of being lodged or fixed even temporarily	(law) a formal accusation against somebody (often in a court of law)
	statements affirming or denying certain matters of fact that you are prepared to prove