Definition of "Blade" :

noun: the flat part of a tool or weapon that (usually) has a cutting edge

noun: flat surface that rotates and pushes against air or water

noun: the part of the skate that slides on the ice

noun: a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard

noun: a broad flat body part (as of the shoulder or tongue)

noun: a cut of beef from the shoulder blade

noun: something long and thin resembling a blade of grass

"A blade of lint on his suit."

noun: a dashing young man

"Gay young blades bragged of their amorous adventures."

noun: especially a leaf of grass or the broad portion of a leaf as distinct from the petiole