snake noun ▶ A long green snake rested on a warm rock. lizard noun ▶ The little lizard ran up the wall very fast. crocodile noun ▶ A huge crocodile opened its mouth in the water. chameleon noun ▶ A chameleon can change colour to hide on a leaf. gecko noun ▶ A small gecko walked across the glass ceiling. iguana noun ▶ The big green iguana sat under the warm lamp. frog noun ▶ A bright frog jumped from the leaf into the pond. scales noun ▶ Reptiles have hard scales all over their skin.