organ noun
1 part of the body
ADJ. internal | important, vital The eyes are an important organ of balance. to preserve blood flow to the brain and the other vital organs | abdominal, genital | digestive, olfactory, reproductive, sense/sensory, sex/sexual, etc. | human | donor waiting for a suitable donor organ
VERB + ORGAN donate | transplant
ORGAN + NOUN donation, donor | transplant, transplantation
2 musical instrument
ADJ. pipe | mechanical | electric, electronic, Hammond (R) | barrel, mouth | church, fairground
ORGAN + NOUN pedal, pipe, stop | loft > Special page at MUSIC
3 official organization
ADJ. central, major the central organs of state | administrative, constitutional, economic, judicial, legislative, political, security | party
You can also check other dicts: organ (English, 中文解释 ), wordnet sense, Collins Definition