This is the 6107th most frequent Spanish word.
alergias
Allergies.
Describes a general condition of having allergies.
Tengo alergias durante la primavera.
I have allergies during the spring.
Specifies an allergic reaction to a certain allergen (cats).
Mis alergias a los gatos son bastante fuertes.
My allergies to cats are quite severe.
Discusses allergies in a general, informational context.