CROC is a term used to refer to a group of reptiles that includes alligators, crocodiles, and caimans. The term is derived from the Greek word for 'PEBBLE' and is used to describe the rough, scaly skin of these animals. The crossword solutions for CROC are REPTILE (7 letters), GATOR (5 letters), and MOAT (4 letters). REPTILE refers to the classification of animals that includes alligators, crocodiles, and caimans. GATOR is a slang term for alligator, which is a type of crocodilian. MOAT is a deep, wide ditch that is usually filled with water and is often used to protect castles and fortresses from attack.