Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


Spanish translation of “allergy”


noun /ˈӕlədʒi/ (plural allergies)
an unusual sensitiveness of the body which causes certain people to be affected in a bad way by something usually harmless The rash on her face is caused by an allergy to grass. allergic /-ˈləː-/ adjective (with to) affected in a bad way by (certain) things He is allergic to certain flowers.
(Definition of allergy from the Password English-Spanish Dictionary © 2013 K Dictionaries Ltd)

Definitions of “allergy” in English

Word of the Day


something that you do to prepare yourself for an activity, especially gentle exercises before a physical activity

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More