How to Say "sufferer" in Spanish
The Spanish word for “sufferer” is “mártir” — C1 level.

Examples
No te hagas el mártir solo porque tienes que limpiar la cocina.
Don't play the martyr just because you have to clean the kitchen.
Mi abuela es una mártir; siempre está cuidando a todos sin quejarse.
My grandmother is a saint/sufferer; she's always taking care of everyone without complaining.
Le encanta ir de mártir por la vida para dar pena.
He loves to go through life acting like a martyr so people feel sorry for him.
Using 'hacerse'
When someone is 'acting' like a martyr, we use the verb 'hacerse' (to make oneself).
Ser vs. Hacerse
Mistake: “Él es el mártir hoy.”
Correction: Él se hace el mártir hoy. (Use 'se hace' to describe the behavior of playing a role, rather than their permanent identity.)
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