pencil
n. · v.-
1 writing tool (n.) A1 Beginnera long, thin tool used for writing or drawing, usually made of wood with a grey centre.
a writing or drawing instrument consisting of a graphite shaft, typically encased in wood and sharpened to a point.
ExampleI need to sharpen my pencil because the tip just broke while I was drawing.
ExampleThe artist preferred a soft-grade pencil for shading, as it allowed for a broader range of tonal values compared to a standard office implement.
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2 optics/geometry (n.) C2 Proficiency Technical Sciencea group of light rays or lines that meet at a single point.
a collection of lines or light rays that converge toward or diverge from a single point.
ExampleThe lens focuses the pencil of light onto a small spot on the screen.
ExampleIn projective geometry, a pencil of lines consists of all straight lines in a plane that pass through a specific common point.
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3 to write with a pencil (v.) B1 Intermediateto write or draw something using a pencil.
to record, sketch, or mark something using a pencil; often implies a temporary or erasable entry.
ExampleShe pencilled her name lightly at the top of the test paper.
ExampleThe architect pencilled a few rough corrections onto the blueprint before sending it back to the drafting team for final revisions.
UsageThis is a transitive verb that takes a direct object.
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4 to schedule tentatively (v.) B2 Upper Intermediate Informalto arrange a meeting or event that might change later.
to schedule an appointment or event tentatively, usually followed by 'in'.
ExampleLet's pencil in a meeting for Tuesday, but I'll confirm it with you on Monday.
ExampleWe can pencil the interview in for Thursday afternoon, though we should remain flexible in case the director's flight is delayed.
UsageUsually used in the phrasal form 'pencil in'.
- tentatively schedule
From Anglo-Norman and Old French pincil (see the variant pincel, which gave rise to Modern French pinceau (“paintbrush”)), from Latin pēnicillum, diminutive of pēniculus (“brush”), itself a diminutive of pēnis (“tail; penis”). Not related to pen.