The sea urchin hid in the seaweed like a ninja.
Meaning: This sentence describes the sea urchin hiding in the seaweed.
Choice of Words: Hid means to conceal yourself from someone or something. Seaweed is a type of plant that grows in the ocean. Ninja is a Japanese warrior who is trained in stealth and combat. When you put them together, "The sea urchin hid in the seaweed like a ninja" means that the sea urchin was hiding in the seaweed, just like a ninja hides from his enemies.
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