Base

noun

1. the bottom of something considered as its support : foundation
2. the fundamental part of something : groundwork, basis
3. something (as a group of people) that reliably provides support (such as for a business or political candidate)
4. the economic factors on which all legal, social, and political relations are formedMarxism
5. the starting point or line for an action or undertaking
6. a baseline in surveying
7. a center or area of operations
8. such as
9. a permanent military installation
10. the place from which a military force draws supplies
11. a place where military operations begin
12. root sense 6linguistics
13. that part of a bodily organ by which it is attached to another more central structure of the organismbiology
14. a number (such as 5 in 56.44 or 57) that is raised to a power (see power entry 1 sense 5a)
15. the number that when raised to a power equal to the logarithm of a number yields the number itselfespecially
16. a number equal to the number of units in a given digit's place (see place entry 1 sense 8) that for a given system of writing numbers is required to give the numeral 1 in the next higher place
17. such a system of writing numbers using an indicated basealso
18. a number that is multiplied by a rate or of which a percentage or fraction is calculated
19. any one of the four stations at the corners of a baseball or softball infield
20. the starting place or goalin various games
21. a point to be considered
22. any of various typically water-soluble and bitter-tasting compounds that in solution have a pH greater than 7, are capable of reacting with an acid to form a salt, turn litmus blue, and are molecules or ions able to take up a proton from an acid or able to give up an unshared pair of electrons to an acid
23. any of the five purine or pyrimidine bases of DNA and RNA that include cytosine, guanine, adenine, thymine, and uracil
24. a price level at which a security (see security sense 3) previously declining in price resists further declinefinance
25. the lower part of a heraldic field (see field entry 1 sense 3c)heraldry
26. the lower part of a wall, pier, or column considered as a separate architectural feature
27. the part of a transformational grammar that consists of rules and a lexicon and generates the deep structures of a languagelinguistics
28. an electrode that modulates the current flowing through a bipolar junction transistor according to the voltage applied to the electrode
29. compare gate entry 1 sense 5b
30. the lower part of a complete architectural design (as of a monument)
31. a side or face (see face entry 1 sense 5a(5)) of a geometrical figure from which an altitude (see altitude sense 1c(1)) can be constructed
32. a side or face on which the figure standsespecially
33. the length of a base
34. a main ingredient
35. a supporting or carrying ingredient (as of a medicine)
36. a first or bottom layer of something on which other elements are added