any one of a group of long, legless reptiles, some of which are poisonous; an insincere, harmful person who pretends to be a friend
reptile
Cases of word usage
1) a kind of large non-poisonous snake that kills by crushing its pray (boa)
2) a kind of poisonous snake of Asia and Africa (cobra)
3) a long, sharp tooth, e.g. of a snake (fang)
4) a cold-blooded animal that lays eggs, e.g. a lizard, tortoise, crocodile, snake (reptile)
5) a snake (the more usual word); a sly, deceptive person (serpent)
6) a kind of small poisonous snake (viper)
