How to Say "allegiance" in Spanish
The Spanish word for “allegiance” is “lealtad” — B1 level. This is a very common word in everyday Spanish.

Examples
La lealtad de un perro a su dueño es asombrosa.
A dog's loyalty to its owner is amazing.
Puso a prueba su lealtad al pedirle que guardara el secreto.
He tested her loyalty by asking her to keep the secret.
Jurar lealtad a la bandera es un acto solemne.
To swear allegiance to the flag is a solemn act.
Always Feminine
Remember that 'lealtad' is a feminine noun, so you must always use the feminine articles: 'la lealtad' or 'una lealtad'.
Using 'de' instead of 'a'
Mistake: “Lealtad de la empresa.”
Correction: Lealtad a la empresa. (Loyalty to the company). Spanish generally uses the preposition 'a' (to) when specifying the target of the loyalty.
Related Translations
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