Here's why:
* Noun: It refers to a place where medicines are dispensed (e.g., "I went to the pharmacy to pick up my prescription.") or the profession of a pharmacist (e.g., "She studied pharmacy in college.").
However, "pharmacy" can also be used as an adjective in some cases, like:
* Adjective: It describes something related to pharmacies or the profession of pharmacy (e.g., "pharmacy school," "pharmacy technician").
It is not commonly used as a verb.