<p><strong>Noun</strong></p><ul><li>an agricultural implement used for cutting, lifting, turning over, and partly pulverizing soil.</li><li>any of various implements resembling or suggesting this, as a kind of plane for cutting grooves or a contrivance for clearing away snow from a road or track.</li><li>(formerly) an instrument for cutting the groove in the foot of type.</li><li>Bookbinding: a device for trimming the edges of the leaves by hand.</li><li>(initial capital letter) Astronomy: the constellation Ursa Major, the Big Dipper.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to turn up (soil) with a plow.</li><li>to make (a furrow) with a plow.</li><li>to tear up, cut into, or make a furrow, groove, etc. in (a surface) with or as if with a plow (often followed by up): The tractor plowed up an acre of trees.</li><li>to clear by the use of a plow, especially a snowplow (sometimes followed by out): The city's work crews were busily plowing the streets after the blizzard.</li><li>to invest, as capital (often followed by into): to plow several hundred million into developing new oil fields.</li><li>to reinvest or reutilize (usually followed by back): to plow profits back into new plants and equipment.</li><li>(of a ship, boat, animal, etc.) to cleave the surface of (the water): beavers plowing the pond.</li><li>to make (a way) or follow (a course) in this manner: The yacht plowed an easterly course through the choppy Atlantic.</li><li>(slang, vulgar) to have sexual intercourse with.</li></ul>