| arpent | (noun) a former French unit of area; equal approximately to an acre | - |
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| carpenter | (noun) a woodworker who makes or repairs wooden objects | - |
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| (verb) work as a carpenter | - |
| carpenteria | (noun) California evergreen shrub having glossy opposite leaves and terminal clusters of a few fragrant white flowers | Synonyms: Carpenteria californica |
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| carpentry | (noun) the craft of a carpenter: making things out of wood | Synonyms: woodwork, woodworking |
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| fourpence | (noun) a former English silver coin worth four pennies | Synonyms: groat |
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| fourpenny | (adjective) used of nail size; 1 1/2 in or 3.8 cm long | - |
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| interpenetrate | (verb) penetrate mutually or be interlocked | Synonyms: permeate |
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| (verb) spread or diffuse through | Synonyms: diffuse, imbue, penetrate, permeate, pervade, riddle |
| interpenetration | (noun) mutual penetration; diffusion of each through the other | Synonyms: permeation |
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| (noun) the action of penetrating between or among | - |
| perpendicular | (adjective) intersecting at or forming right angles | - |
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| (adjective) at right angles to the plane of the horizon or a base line | Synonyms: vertical |
| (adjective) so steep as to be nearly vertical | - |
| (noun) an extremely steep face | - |
| (noun) a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point | Synonyms: plumb line |
| (noun) a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting | Synonyms: English-Gothic, English-Gothic architecture, perpendicular style |
| (noun) a straight line at right angles to another line | - |
| perpendicularity | (noun) the quality of being at right angles to a given line or plane (especially the plane of the horizon) | - |
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| (noun) the relation of opposition between things at right angles | Synonyms: orthogonal opposition, orthogonality |
| perpendicularly | (adverb) in a perpendicular manner | - |
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| (adverb) straight up or down without a break | Synonyms: sheer |
| serpent | (noun) limbless scaly elongate reptile; some are venomous | Synonyms: ophidian, snake |
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| (noun) an obsolete bass cornet; resembles a snake | - |
| (noun) a firework that moves in serpentine manner when ignited | - |
| serpentine | (adjective) resembling a serpent in form | Synonyms: snakelike, snaky |
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| sharpen | (verb) become sharp or sharper | - |
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| (verb) make crisp or more crisp and precise | - |
| (verb) raise the pitch of (musical notes) | - |
| (verb) put (an image) into focus | Synonyms: focalise, focalize, focus |
| (verb) make (one's senses) more acute | Synonyms: heighten |
| (verb) give a point to | Synonyms: point, taper |
| (verb) make sharp or sharper | - |
| (verb) make (images or sounds) sharp or sharper | - |
| sharpened | (adjective) having the point made sharp | - |
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| (adjective) made sharp or sharper | - |
| sharpener | (noun) any implement that is used to make something (an edge or a point) sharper | - |
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| terpene | (noun) an unsaturated hydrocarbon obtained from plants | - |
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| turpentine | (noun) an oleoresin obtained from conifers (especially pines) | Synonyms: gum terpentine |
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| (noun) volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally | Synonyms: oil of turpentine, spirit of turpentine, turps |
| unsharpened | (adjective) not sharpened | - |
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