Definition of "Pencil" :
noun: a thin cylindrical pointed writing implement; a rod of marking substance encased in wood
noun: a cosmetic in a long thin stick; designed to be applied to a particular part of the face
"An eyebrow pencil."
noun: a figure formed by a set of straight lines or light rays meeting at a point
noun: graphite (or a similar substance) used in such a way as to be a medium of communication
"The words were scribbled in pencil."
verb: write, draw, or trace with a pencil
"He penciled a figure."