base

1. (n) Something from which other things extend; a foundation. 2. (n) A supporting, lower or bottom component of a structure or object. 3. (n) The starting point of a logical deduction or thought; basis. 4. (n) A site, structure, or both, usually durable and often permanent, for housing military personnel and materiel. 5. (n) The place where decisions for an organization are made; headquarters. 6. (n) (cooking, painting, pharmacy) A basic but essential component or ingredient. 7. (n) A substance used as a mordant in dyeing. 8. (n) (cosmetics) Foundation: a cosmetic cream to make the face appear uniform. 9. (n) (chemistry) Any of a class of generally water-soluble compounds that turn red litmus blue and react with acids to form salts. 10. (n) Important areas in games and sports. 11. (n) A safe zone in the children's games of tag and hide-and-go-seek. 12. (n) (baseball) One of the four places that a runner can stand without being subject to being tagged out when the ball is in play. 13. (n) (architecture) The lowermost part of a column, between the shaft and the pedestal or pavement. 14. (n) (biology, biochemistry) A nucleotide's nucleobase in the context of a DNA or RNA biopolymer. 15. (n) (botany) The end of a leaf, petal or similar organ where it is attached to its support. 16. (n) (electronics) The name of the controlling terminal of a bipolar transistor (BJT). 17. (n) (geometry) The lowest side of a triangle or other polygon, or the lowest face of a cone, pyramid or other polyhedron laid flat. 18. (n) (heraldry) The lowest third of a shield (or field), or an ordinary occupying this space, the champagne. (Compare terrace.) 19. (n) (mathematics) A number raised to the power of an exponent. 20. (n) (mathematics) Synonym of radix. 21. (n) (topology) The set of sets from which a topology is generated. 22. (n) (topology) A topological space, looked at in relation to one of its covering spaces, fibrations, or bundles. 23. (n) (group theory) A sequence of elements not jointly stabilized by any nontrivial group element. 24. (n) (acrobatics, cheerleading) In hand-to-hand balance, the person who supports the flyer; the person that remains in contact with the ground. 25. (n) (linguistics) A morpheme (or morphemes) that serves as a basic foundation on which affixes can be attached. 26. (n) A line in a survey which, being accurately determined in length and position, serves as the origin from which to compute the distances and positions of any points or objects connected with it by a system of triangles. 27. (n) (politics) A group of voters who almost always support a single party's candidates for elected office. 28. (n) (Marxism) The forces and relations of production that produce the necessities and amenities of life. 29. (n) A material that holds paint or other materials together; a binder. 30. (n) (slang, uncountable) freebase cocaine 31. (v) (transitive) To give as its foundation or starting point; to lay the foundation of. 32. (v) (transitive) To be located (at a particular place). 33. (v) (acrobatics, cheerleading) To act as a base; to be the person supporting the flyer. 34. (v) (slang) To freebase. 35. (adj) Low in place or position. 36. (adj) Morally reprehensible, immoral; cowardly. 37. (adj) (of a metal) Not considered precious or noble. 38. (adj) Alloyed with inferior metal; debased. 39. (adj) Not classical or correct. 40. (adj) (law) Relating to feudal land tenure held by a tenant from a lord in exchange for services that are seen as unworthy for noblemen to perform, such as villeinage. 41. (n) (military, historical) The smallest kind of cannon. 42. (n) (archaic) The housing of a horse. 43. (n) (historical, sometimes in the plural) A kind of skirt (often of velvet or brocade) which hung from the middle to about the knees, or lower. 44. (n) (historical, sometimes in the plural) A kind of armour skirt, of mail or plate, imitating the preceding civilian skirt. 45. (n) (obsolete) The lower part of a robe or petticoat. 46. (n) (obsolete) An apron. 47. (adj) (obsolete) Low in height; short. 48. (adj) (obsolete) Of low value or degree. 49. (adj) (archaic) Of low social standing or rank; vulgar, common. 50. (adj) (now rare) Inferior; unworthy, of poor quality. 51. (adj) (obsolete) Of illegitimate birth; bastard. 52. (n) (now chiefly US, historical) The game of prisoners' bars. 53. (n) A surname transferred from the nickname. 54. (n) (aviation) Ellipsis of base leg. [(aviation) The part of a landing before final approach, flown downwind of and at right angles to the runway.] 55. (n) (music) Dated form of bass. [A low spectrum of sound tones.] 56. (adj) Obsolete form of bass. [Of sound, a voice or an instrument, low in pitch or frequency.] 57. (n) Alternative form of BASE. 58. (n) Acronym of building, antenna-tower, span, earth. [(uncountable) The act or process by which something is built; construction.]