A near-self-contained radical: 龙 indexes itself plus a few archaic compounds (龚 reverence, 龛 niche / shrine, 龔, 龐). Almost all dragon vocabulary is built by compounding 龙 with another character (龙舟 dragon boat, 龙头 faucet / leader, 恐龙 dinosaur). Simplified 龙 has 5 strokes; traditional 龍 has 16.