lev·el (l?v??l)n.1. a. Relative position or rank on a scale: the local level of government; studying at the graduate level.b. A relative degree, as of achievement, intensity, or concentration: an unsafe level of toxicity; a high level of frustration.2. A natural or proper position, place, or stage: I finally found my own level in the business world.3. Position along a vertical axis; height or depth: a platform at knee level.4. a. A horizontal line or plane at right angles to the plumb.b. The position or height of such a line or plane.5. A flat, horizontal surface.6. A land area of uniform elevation.7. a. An instrument for ascertaining whether a surface is horizontal, vertical, or at a 45° angle, consisting essentially of an encased, liquid-filled tube containing an air bubble that moves to a center window when the instrument is set on an even plane. Also called spirit level.b. Such a device combined with a telescope and used in surveying.c. A computation of the difference in elevation between two points by using such a device.adj.1. Having a flat, smooth surface: a level countertop.2. Being on a horizontal plane: a level field.3. a. Being at the same height or position as another; even.b. Being at the same degree of rank, standing, or advantage as another; equal.c. Being or relating to a specified rank or standing. Often used in combination: a lower-level administrator.4. Exhibiting no abrupt variations; steady: spoke in a level tone.5. Rational and balanced; sensible: came to a level appraisal of the situation; keeps a level head in an emergency.6. Filled evenly to the top: a level tablespoon of the medicine.v. lev·eled, lev·el·ing, lev·els or lev·elled or lev·el·ling v.tr.1. a. To make horizontal, flat, or even: leveled the driveway with a roller; leveled off the hedges with the clippers.b. To place on the same rank; equalize.2. a. To tear down (a building, for example); raze.b. To knock down, as with a blow; lay low: leveled the opponent with an uppercut.3. a. To aim along a horizontal plane: leveled the gun at the target.b. To direct emphatically or forcefully toward someone: leveled charges of dishonesty. See Synonyms at aim.4. To measure the different elevations of (a tract of land) with a level.v.intr.1. To bring persons or things to an equal level; equalize.2. To aim a weapon horizontally.3. Informal To be frank and open: advised the suspect to level with the authorities.adv. Along a flat or even line or plane.Phrasal Verb: level off1. To move toward stability or consistency: Prices leveled off.2. To maneuver an aircraft into a flight attitude that is parallel to the surface of the earth after gaining or losing altitude.Idioms: (one’s) level best The best one can do in an earnest attempt: I did my level best in math class. on the level Informal Without deception; honest.[Middle English, an instrument to check that a surface is horizontal, from Old French livel, from Vulgar Latin *l?bellum, from Latin l?bella, diminutive of l?bra, balance.]lev?el·ly adv.lev?el·ness n.Synonyms: level, flat1, even1, plane1, smooth, flush1 These adjectives describe surfaces without elevations or depressions. Level implies being parallel with the line of the horizon: acres of level farmland. Flat applies to surfaces without curves, protuberances, or indentations: “There were no woods behind the yard, just an expanse of flat cleared land and then a hill that sloped down into the former quarry” (Frederick Reiken). Even refers to flat surfaces in which no part is higher or lower than another: the even surface of the mirror. Plane is a mathematical term referring to a surface containing all the straight lines connecting any two points on it: a plane figure. Smooth describes a surface on which the absence of irregularities can be established by sight or touch: smooth marble. Flush applies to a surface that is on an exact level with an adjoining one: The door is flush with the wall. See Also Synonyms at aim.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.level (?l?v?l) adj1. on a horizontal plane2. having a surface of completely equal height3. being of the same height as something else4. (Cookery) (of quantities to be measured, as in recipes) even with the top of the cup, spoon, etc5. equal to or even with (something or someone else)6. not having or showing inconsistency or irregularities7. Also: level-headed even-tempered; steadyvb, -els, -elling or -elled, -els, -eling or -eled8. (sometimes foll by: off) to make (a surface) horizontal, level, or even9. to make (two or more people or things) equal, as in position or status10. (tr) to raze to the ground11. (tr) to knock (a person) down by or as if by a blow12. (tr) to direct (a gaze, criticism, etc) emphatically at someone13. informal (often foll by: with) to be straightforward and frank14. (Aeronautics) (intr; foll by off or out) to manoeuvre an aircraft into a horizontal flight path after a dive, climb, or glide15. (Firearms, Gunnery, Ordnance & Artillery) (often foll by at) to aim (a weapon) horizontally16. (Surveying) surveying to determine the elevation of a section of (land), sighting through a levelling instrument to a staff at successive pairs or pointsn17. (Surveying) a horizontal datum line or plane18. (Tools) a device, such as a spirit level, for determining whether a surface is horizontal19. (Surveying) a surveying instrument consisting basically of a telescope with a spirit level attached, used for measuring relative heights of land. See Abney level, dumpy level20. (Surveying) a reading of the difference in elevation of two points taken with such an instrument21. position or status in a scale of values22. amount or degree of progress; stage23. a specified vertical position; altitude24. a horizontal line or plane with respect to which measurement of elevation is based: sea level. 25. a flat even surface or area of land26. (Mining & Quarrying) a horizontal passage or drift in a mine27. (Geological Science) any of the successive layers of material that have been deposited with the passage of time to build up and raise the height of the land surface28. (General Physics) physics the ratio of the magnitude of a physical quantity to an arbitrary magnitude: sound-pressure level. 29. do one’s level best to make every possible effort; try one’s utmost30. find one’s level to find one’s most suitable place socially, professionally, etc31. on a level on the same horizontal plane as another32. on the level informal sincere, honest, or genuine[C14: from Old French livel, from Vulgar Latin l?bellum (unattested), from Latin l?bella, diminutive of l?bra scales] ?levelly adv ?levelness nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014lev?el (?l?v ?l) adj., n., v. -eled, -el?ing (esp. Brit.) -elled, -el?ling. adj. 1. having no part higher than another; having a flat or even surface. 2. being in a plane parallel to the plane of the horizon; horizontal. 3. equal, as in height, condition, status, or advancement. 4. even, equable, or uniform: to speak in a level voice. 5. filled to a height even with the rim of a container: a level teaspoon of salt. 6. mentally well-balanced; sensible; rational: to keep a level head in a crisis. 7. of or pertaining to a particular rank or involving members of such a rank (usu. used in combination): high-level discussions. n. 8. the horizontal line or plane in which anything is situated, with regard to its elevation: a shelf built at eye level. 9. a position with respect to a given or specified height: The water rose to a level of 30 feet. 10. a position or plane in a graded scale of values: an average level of skill. 11. rank or status, as in a hierarchy: the top levels of government. 12. stratum or sphere: levels of meaning; elections on a local level. 13. an extent, measure, or degree of intensity, concentration, quantity, etc.: low levels of radiation; to increase levels of production. 14. a horizontal surface, as a floor in a building or other structure: the upper level of the bridge. 15. a device, as a spirit level, used for determining or adjusting something to a horizontal surface. 16. a. a surveying instrument consisting of a spirit level mounted on a frame with a telescopic sight, used for establishing a horizontal. b. an observation made with this instrument. 17. an imaginary line or surface everywhere at right angles to the plumb line. 18. a horizontal position or condition. 19. a level or flat surface, as an extent of land approximately horizontal and unbroken by irregularities. 20. the interconnected horizontal mine workings at a particular elevation or depth: the 1500-foot level. v.t. 21. to make (a surface) level, even, or flat; make horizontal. 22. to raise or lower to a particular level or position. 23. to bring (something) to the level of the ground: to level trees. 24. Informal. to knock down (a person). 25. to make equal, as in status or condition. 26. to make even or uniform, as coloring. 27. to aim or point (a weapon, criticism, etc.) at a mark or objective. 28. to find the relative elevation of different points in (land), as with a surveyor’s level. v.i. 29. to bring things or persons to a common level. 30. to aim a weapon, criticism, etc., at a mark or objective. 31. to speak truthfully and openly (often fol. by with). 32. a. to take a level in surveying. b. to use a leveling instrument. 33. level off, a. (of an aircraft) to maintain a constant altitude after a climb or descent. b. to become stable; reach a constant or limit. c. to make even or smooth. Idioms: 1. find one’s (own) level, to attain a position or status that matches one’s ability. 2. one’s level best, one’s very best; one’s utmost. 3. on the level, honest; sincere; reliable. [1300?50; Middle English, variant of livel A level is a point on a scale, for example a scale of amount or importance.You say that something is at a particular level.