Front

waves

Back

movements of water in the sea

Front

sea

Back

large body of salt water

Front

gnaws

Back

to bite or chew on something persistently

Front

bones

Back

the hard parts that make up the skeleton of a vertebrate

Front

paws

Back

the feet of an animal, especially a mammal

Front

giant

Back

very large in size or amount

Front

grey

Back

a color between black and white

Front

tumbling

Back

falling or rolling suddenly and clumsily