Grade word meaning and definition

[noun] the gradient of a slope or road or other surface; "the road had a steep grade"
[noun] a position on a scale of intensity or amount or quality; "a moderate degree of intelligence"; "a high level of care is required"; "it is all a matter of degree"
[noun] the height of the ground on which something stands; "the base of the tower was below grade"
[noun] a number or letter indicating quality (especially of a student's performance); "she made good marks in algebra"; "grade A milk"; "what was your score on your homework?"
[noun] a body of students who are taught together; "early morning classes are always sleepy"
[noun] one-hundredth of a right angle
[noun] a relative position or degree of value in a graded group; "lumber of the highest grade"
[adjective] (of domestic animals) improved by selective breeding
[adjective] at surface level; "a grade crossing"
[verb] determine the grade of or assign a grade to
[verb] assign a grade or rank to, according to one's evaluation; "grade tests"; "score the SAT essays"; "mark homework"
[verb] assign a rank or rating to; "how would you rank these students?"; "The restaurant is rated highly in the food guide"
[verb] level to the right gradient

\Grade\, n. [F. grade, L. gradus step, pace, grade, from gradi to step, go. Cf. {Congress}, {Degree}, {Gradus}.] 1. A step or degree in any series, rank, quality, order; relative position or standing; as, grades of military rank; crimes of every grade; grades of flour. They also appointed and removed, at their own pleasure, teachers of every grade. --Buckle. 2. In a railroad or highway:
(a) The rate of ascent or descent; gradient; deviation from a level surface to an inclined plane; -- usually stated as so many feet per mile, or as one foot rise or fall in so many of horizontal distance; as, a heavy grade; a grade of twenty feet per mile, or of 1 in 264.
(b) A graded ascending, descending, or level portion of a road; a gradient. 3. (Stock Breeding) The result of crossing a native stock with some better breed. If the crossbreed have more than three fourths of the better blood, it is called high grade. {At grade}, on the same level; -- said of the crossing of a railroad with another railroad or a highway, when they are on the same level at the point of crossing. {Down grade}, a descent, as on a graded railroad. {Up grade}, an ascent, as on a graded railroad. {Equating for grades}. See under {Equate}. {Grade crossing}, a crossing at grade.
\Grade\, v. t. [imp. & p. p. {Graded}; p. pr. & vb. n. {Grading}.] 1. To arrange in order, steps, or degrees, according to size, quality, rank, etc. 2. To reduce to a level, or to an evenly progressive ascent, as the line of a canal or road. 3. (Stock Breeding) To cross with some better breed; to improve the blood of.
\Grade\, n. A harsh scraping or cutting; a grating. The grade of hatchets fiercely thrown. On wigwam log, and tree, and stone. --Whittier.

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