Tra từ allegiance - Từ điển Oxford Advanced Learner 8th

al·le·giance [allegiance allegiances] BrE [əˈliːdʒəns] NAmE [əˈliːdʒəns] noun uncountable, countable
a person's continued support for a political party, religion, ruler, etc
•to switch/transfer/change allegiance
•an oath/a vow/a statement of allegiance
•People of various party allegiances joined the campaign.
•~ (to sb/sth) to pledge/swear allegiance
•He affirmed his allegiance to the president.

Word Origin:
late Middle English: from Anglo-Norman French, variant of Old French ligeance, from lige, liege (from medieval Latin laeticus, probably of Germanic origin), perhaps by association with Anglo-Latin alligantia ‘alliance’.

Example Bank:
•Every day the children say the Pledge of Allegiance.
•Every day the schoolchildren pledge an oath of allegiance to their country.
•He is now very rich but his allegiance to his working-class origins is still strong.
•He keeps everyone guessing about his true allegiance.
•He owed his allegiance to the organization that had given him all his opportunities.
•It is hard to keep up with the changing allegiances between the various political parties.
•Love of one's country does not mean blind allegiance to a regime.
•Many people have abandoned their traditional party allegiances.
•New officers take an oath of allegiance to their country.
•The rebels now have to swear allegiance to a leader they hate.
•The union needs to retain the allegiance of all its members for the strike to succeed.
•The various splinter groups all claim allegiance to the true spirit of the movement.
•We will give our full allegiance to the party and everything it believes in.