pencil

IPA: pˈɛnsʌɫ

(now chiefly historical) A paintbrush.
A writing utensil with a graphite (commonly referred to as lead) shaft, usually blended with clay, clad in wood, and sharpened to a taper.
(optics) An aggregate or collection of rays of light, especially when diverging from, or converging to, a point.
(geometry) A family of geometric objects with a common property, such as the set of lines that pass through a given point in a projective plane.
(medicine, obsolete, rare) A small medicated bougie.
(gambling) Ellipsis of power of the pencil. [(gambling) The authority to charge a punter's gambling or other bills to the casino.]

Examples of "pencil" in Sentences

After a while, we'd get letters written in pencil, then in ink.
Hope he gets knocked out in his next match. .enjoy losing the title pencil dick.
Other forms of art are welcome too (digital, black and white in pencil or pen, or bizarre stuff).
The fact that the English word "pencil" shares its root with the Latin word for "little penis" shouldn't keep us from pulling one out at the Family History Center.
Since I had museum training, I was permitted to write (in pencil, of course) on the cards the new information, such as weight, measurements, number of vibratodes (attachments), and so on.