The Chinese word for octopus is
章鱼

zhāng yú

Chinese Definition

octopus
1. 名词. 烏賊、八爪魚
Components
章
1. chapter; section
九章算術 - The Nine Chapters on the Mathematical Art
章節 - chapter, section
樂章 - (music) movement
2. composition; structure
文章 - article, essay
3. rules; regulations; constitution; charter
章程 - rules; charter
按章工作 - work-to-rule
4. seal; stamp
圖章 - stamp, seal
5. badge; medal; emblem
徽章 - badge, emblem
6. order (rfv-sense)
雜亂無章 - confusing and disordered; chaotic
7. memorial to the throne
奏章 - memorial to the throne
8. (Cantonese) mahjong tiles
9. (Alternative form 彰) obvious; well-known
10. (Alternative form 彰) to make manifest; to display; to express
11. (Alternative form 彰) to commend; to praise; to distinguish
12. (Chinese astronomy) the cycle of 19 years (approximate common multiple for the synodic month and tropical year, similar to the Metonic cycle)
章動 - nutation
13. . Zhang; Cheung
章子-怡 - Zhang Ziyi
鱼
1. Variant of 魚

章魚
1. n. octopus

章鱼
1. Simplified form of 章魚

花枝
1. n. (literary) flowering branch; spray
2. n. (figuratively) beautiful woman
3. n. (Min Nan, botany) floral axis
4. n. (Min Nan, botany) pedicel (of a flower)
5. n. cuttlefish (especially as a dish) (attn, zh, squid as well?)