noun, noun, used as a suffix
phobia; morbid fear
Used both as a standalone noun for a phobia and as a suffix in compound terms like 高所恐怖症 (acrophobia).
彼は閉所恐怖症で、エレベーターに乗れない。
He has claustrophobia and cannot ride elevators.
高所恐怖症の人は高い場
People with acrophobia avoid high places.