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

Examples
El director hizo una referencia a una película antigua en la última escena.
The director made a reference to an old movie in the last scene.
En su discurso, no hizo ninguna referencia a la crisis económica.
In his speech, he didn't make any reference to the economic crisis.
¿Entendiste la referencia que hizo sobre el fútbol?
Did you understand the reference he made about soccer?
Verb Partner
The most common verb used with 'referencia' in this context is 'hacer' (to make), as in 'hacer una referencia' (to make a reference/to mention).
Confusing the Verb
Mistake: “Using 'dar referencia' (to give reference) when mentioning something.”
Correction: Use 'hacer una referencia' (to make a reference/mention). 'Dar una referencia' is reserved for job recommendations (see Definition 3).
Related Translations
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