paper
a 4 letter word for a thin frog is a toad
Cord
third thin, thimble, tried, trip...
slim lean or thin
A thin piece of wood?
broad,
paper
a 4 letter word for a thin frog is a toad
skinny
haze?
Film
batiste
Cord
Probably "slender".
A four letter word and the opposite of fat would be thin.
envelope