This is the 4945th most frequent German word.
allergien
Allergien: Allergies.
Here, the word 'Allergien' is used to indicate a health condition where the speaker reacts sensitively to a specific allergen, in this case, pollen.
Ich habe Allergien gegen Pollen.
I have allergies to pollen.
In this sentence, 'Allergien' is used to discuss the general nature and characteristics of allergies as a medical phenomenon.
Allergien können leicht oder schwerwiegend sein.
Allergies can be mild or severe.
The word 'Allergien' in this sentence refers to allergic reactions that might be mitigated or minimized through dietary adjustments.