An octopus is an eight-legged sea creature that's really good at hiding and finding food.
You might have seen pictures or videos of octopuses playing with shells, slipping through tiny openings, or changing color to blend in with their surroundings. In everyday conversation, people often talk about octopuses as intelligent and curious creatures. If someone says "I saw an octopus at the aquarium yesterday," they're probably just telling you a fun story from their day out.
Any of several marine molluscs of the family Octopodidae, having no internal or external protective shell or bone (unlike the nautilus, squid and cuttlefish) and eight arms each covered with suckers.
To put (or attempt to put) one's fingers, hands or arms in many things or places at roughly the same time.
