COCODRILE.

croc‧o‧dile

1 [countable] a large reptile with a long mouth and many sharp teeth that lives in lakes and rivers in hot wet parts of the world [↪ alligator]

2 [uncountable] the skin of this animal, used for making things such as shoes:

a crocodile briefcase

3 [countable] British English a long line of people, especially school children, walking in pairs

4

 crocodile tears

if someone sheds crocodile tears, they seem sad, sorry, or upset, but they do not really feel this way

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.