This is the 2756th most frequent Japanese word.
蟹
Crab.
蟹 is used here as the object of the verb, referring to the food being eaten.
蟹を食べるのが好きです。
I like eating crabs.
蟹 is used here as the subject, referring to the edible animal becoming tastier in a specific season.
冬になると蟹が美味しくなります。
Crabs become delicious in winter.
蟹 is used here as the subject, referring to the creature that lives in the sea.