List of Abstract Nouns: Concepts of Things

1. acute angle An abstract concept of a geometric feature that is the angle formed by two lines is smaller than a right angle and is less than 90 degree.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Angle#Types_of_angles last updated 4/16/2015
2. apex An abstract concept of a zero dimensional geometric feature that is the highest point or top of something when considering in upright position.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Apex_%28geometry%29 last updated 4/16/2015
3. base An abstract concept of a geometric feature that is the lowest part, foot or bottom of something when considering in upright position.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Base_%28geometry%29 last updated 4/16/2015
4. centimeter A concept of measuring unit that is a unit of linear measure of 0.01 metres.last updated 4/15/2015
   http://en.wikipedia.org/wiki/Centimetre last updated 4/15/2015
5. chemistry chemistry" is something which is a branch of physical science that deals with the scientific study of the composition, structure, and properties of substances, and the processes of a substance changes and reacts with other substances.last updated 2/28/2015
   http://en.wikipedia.org/wiki/Chemistry last updated 2/28/2015
6. circle An abstract concept of a two dimensional geometric figure that is a plane shape bounded by one single line with all straight lines radiating from only one single point within the figure and falling upon the line are of equal in length.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Circle last updated 4/16/2015
7. circumference An abstract concept of a geometric feature that is the border line around the enclosing boundary of a curved geometric figure.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Circumference last updated 4/16/2015
8. cone An abstract concept of a three dimensional geometric figure that is the geometric form of an solid object bounded by two surface boundaries or sides obtained by turning a right triangle a full 360 degree rotation with one side adjacent to the right angle fixed as the rotating axis in three dmensional space.last updated 4/17/2015
   http://en.wikipedia.org/wiki/Cone last updated 4/17/2015
9. cube An abstract concept of a three dimensional geometric figure that is the geometric form of an solid object bounded by six square surface boundaries or sides of the same size in three dmensional space with angle between two adjacent sides is a right angle.last updated 4/16/2015
   http://en.wikipedia.org/wiki/Cube last updated 4/16/2015
10. diagonal An abstract concept of a one dimensional geometric thing that is the linear connection of two non-consecutive vertices in an object through a straight line segment.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Diagonal last updated 4/16/2015
11. diameter An abstract concept of a one dimension geometric feature that is the straight line radiated in both directions from a point within the boundary through the center to the boundary.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Diameter last updated 4/16/2015
12. distance A quantity concept of a measurement that is the amount of length unit measurement between two points, places, or things with respect to the path of measurement in space.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Distance last updated 4/15/2015
13. education education" is something which is a process that is the action or process of teaching, learning, acquiring or receiving knowledge in someplace systematically.last updated 3/3/2015
    http://en.wikipedia.org/wiki/Education last updated 3/3/2015
14. ellipse An abstract concept of a two dimensional geometric figure that is a plane shape bounded by one single line with the sum of distances from two fixed points within the figure radiating to every point on the boundary is a constant.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Ellipse last updated 4/16/2015
15. foot A concept of measuring unit that is an imperial unit of linear measure of twelve inch and is approximately equal to 0.3048 metres.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Foot_%28unit%29 last updated 4/15/2015
16. geometric shape An abstract concept of a geometric figure that is the geometric form of an object, usually a plane shape or figure, bounded by any boundary or boundaries.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Shape last updated 4/16/2015
17. grammar grammar" is something which is a branch of linguistics that deals with the systematic study of the system and structure of a language, and the set of rules about the form of words, the combination of words and the composition of words, phrases, and clauses in making sentences.last updated 2/28/2015
    http://en.wikipedia.org/wiki/Grammar last updated 2/28/2015
18. hypotenuse An abstract concept of a geometric feature that is the longest side of a right angle triangle opposite to the right angle.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Hypotenuse last updated 4/16/2015
19. inch A concept of measuring unit that is an imperial unit of linear measure of one twelfth of a foot and is approximately equal to 2.54 centimetres.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Inch last updated 4/15/2015
20. isosceles triangle An abstract concept of a two dimensional geometric figure that is a plane shape with three straight sides of only two adjacent sides equal in length.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Isosceles_triangle last updated 4/16/2015
21. kilometer A concept of measuring unit that is a unit of linear measure of 1000 metres.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Kilometre last updated 4/15/2015
22. line An abstract concept of a general one dimensional geometric thing that is a straight or curved continuous extent of length with no breadth and thickness.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Line_%28geometry%29 last updated 4/15/2015
23. measurement An abstract concept of quantifying something against a standard that is the discovery and assignment of numbers to something according to a well defined standard.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Measurement last updated 4/15/2015 An abstract concept of a quantified quantity with respect to a standard that is the discovered and assigned number of something according to a well defined standard..last updated 4/15/2015
    http://en.wikipedia.org/wiki/Measurement last updated 4/15/2015
24. meter A concept of measuring unit that is the basic SI unit of length defined as the path lenght travelled by light in vaccum during a time interval of 1/299792458 seconds since 1983.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Metre last updated 4/15/2015
25. mile A concept of measuring unit that is an imperial unit of linear measure of 1760 yards and is approximately equal to 1.6 kilometres.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Mile last updated 4/15/2015
26. music music" is something which is a form of art that uses sound as the medium to produce sequences of sounds which are characterized by pitch, rhythm, dynamic, tone color, and sonic texture.last updated 2/28/2015
    http://en.wikipedia.org/wiki/Music last updated 2/28/2015
27. parallel lines An abstract concept of a two dimensional geometric feature that is two lines lying in a plane do not meet one another in neither directions when indefinitely in both direction.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Parallel_%28geometry%29 last updated 4/15/2015
28. perpendicular lines An abstract concept of a two dimensional geometric feature that is two lines standing upon one another in a plane with all formed adjacent angles equal to a right angle.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Perpendicular last updated 4/15/2015
29. pyramid An abstract concept of a three dimensional geometric figure that is the geometric form of an solid object bounded by surface boundaries or sides obtained by connecting a polygonal base flat plane to a point of apex by lateral flat faces in three dmensional space.last updated 4/17/2015
    http://en.wikipedia.org/wiki/Pyramid_%28geometry%29 last updated 4/17/2015
30. qualification
31. radius An abstract concept of a one dimension geometric feature that is the straight line radiated from the center to every point on the boundary.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Radius last updated 4/16/2015
32. reality
33. rectangle An abstract concept of a two dimensional geometric figure that is a plane shape with four straight sides of opposite sides equal in length forming four internal right angles to each other.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Rectangle last updated 4/16/2015
34. right angle An abstract concept of a geometric feature that is the angle formed by two lines standing upon one another in a plane when all formed adjacent angles equal to one another and is equal to 90 degree.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Right_angle last updated 4/16/2015
35. right triangle An abstract concept of a two dimensional geometric figure that is a plane shape with three straight sides of two adjacent sides forming a right angle to each other.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Right_triangle last updated 4/16/2015
36. side An abstract concept of a border of the boundary of something that is the edge or extremity of something.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Edge_%28geometry%29 last updated 4/15/2015
37. solid figure An abstract concept of a three dimensional geometric figure that is the geometric form of an object bounded by any boundary or boundaries in three dmensional space.last updated 4/16/2015
    http://en.wikipedia.org/wiki/Solid_geometry last updated 4/16/2015
38. space exploration The concept of scientific study of the Universe that is the ongoing investigation and discovery of celestial structures in outer space by means of the available space technology.last updated 4/14/2015
    http://en.wikipedia.org/wiki/Space_exploration last updated 4/14/2015
39. sphere An abstract concept of a three dimensional geometric figure that is the geometric form of an solid object bounded by one surface boundaries or sides obtained by turning a semicircle a full 360 degree rotation with the diameter as the rotating axis in three dmensional space.last updated 4/17/2015
    http://en.wikipedia.org/wiki/Sphere last updated 4/17/2015
40. square An abstract concept of a two dimensional geometric figure that is a plane shape with four straight sides of equal length forming four internal right angles to each other.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Square last updated 4/15/2015
41. straight line An abstract concept of a one dimensional geometric thing that is a straight continuous extent of length with no breadth and thickness.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Line_%28geometry%29 last updated 4/15/2015
42. understanding
43. yard A concept of measuring unit that is an imperial unit of linear measure of three feet and is approximately equal to 91.4 centimetres.last updated 4/15/2015
    http://en.wikipedia.org/wiki/Yard last updated 4/15/2015