Meaning & use
allergy
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Meanings
nouncountable
A medical condition in which the body reacts badly to a substance that is harmless to most people.
Grammar: Countable: an allergy, allergies. Followed by 'to': an allergy to nuts.
Patterns
- an allergy to something
- have an allergy
- develop an allergy
She has a serious allergy to peanuts.
He developed an allergy to dust as an adult.
My allergies get worse in the spring.
nouncountableinformalfigurative
A strong dislike or unwillingness to accept something.
Grammar: Usually singular and figurative: an allergy to change.
Patterns
- an allergy to something
The company has a real allergy to risk.
His allergy to criticism makes him hard to work with.
Word forms
| plural | allergies |
|---|
Common combinations
- food allergy
- Food allergies are common in young children.
- allergy to
- He has an allergy to penicillin.
- allergy season
- During allergy season, I take medicine every day.
- develop an allergy
- You can develop an allergy at any age.
- severe allergy
- A severe allergy can be life-threatening.
Synonyms and how they differ
- intolerance
- Intolerance is often used for digestive problems, such as lactose intolerance, rather than a true immune reaction.
- sensitivity
- Sensitivity is a broader word for reacting strongly to something, and may not be a medical allergy.
Word family
- allergic adjective
- Having an allergy; reacting badly to a substance.
- allergen noun
- A substance that causes an allergic reaction.
- allergist noun
- A doctor who specializes in treating allergies.
Commonly confused: allergy or allergy vs. allergen?
allergy vs allergy vs. allergen
An allergy is the condition; an allergen is the substance that causes it. Peanuts are an allergen; the reaction is an allergy.
Practice
He has an allergy ___ cats, so he can't visit our house.
Choose one answer.
The correct preposition after allergy is 'to': an allergy to cats. The others are not used in this pattern.
Make it your own
Write a sentence using “allergy”, then check it and compare it with the examples above.