Noun:
1: base, alkali any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
2: base, base of operations installation from which a military force initiates operations; "the attack wiped out our forward bases"
3: foundation, foot, base, substructure, groundwork, understructure, fundament lowest support of a structure; "it was built on a base of solid rock"; "he stood at the foot of the tower"
4: bag, base place that runner must touch before scoring; "he scrambled to get back to the bag"
5: radix, base (numeration system) the positive integer that is equivalent to one in the next higher counting place; "10 is the radix of the decimal system"
6: base the bottom or lowest part; "the base of the mountain"
7: base (anatomy) the part of an organ nearest its point of attachment; "the base of the skull"
8: base, floor a lower limit; "the government established a wage floor"
9: base, fundament, foundation, basis, groundwork, cornerstone the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture"
10: pedestal, base, stand a support or foundation; "the base of the lamp"
11: base the bottom side of a geometric figure from which the altitude can be constructed; "the base of the triangle"
12: base, basis the most important or necessary part of something; "the basis of this drink is orange juice"
13: home, base the place where you are stationed and from which missions start and end
14: al-qaeda, base, qaeda, al-qa'ida, al-qaida a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries
15: base, theme, radical, stem, root, root word (linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem"
16: infrastructure, base the stock of basic facilities and capital equipment needed for the functioning of a country or area; "the industrial base of Japan"
17: base the principal ingredient of a mixture; "glycerinated gelatin is used as a base for many ointments"; "he told the painter that he wanted a yellow base with just a hint of green"; "everything she cooked seemed to have rice as the base"
18: base a flat bottom on which something is intended to sit; "a tub should sit on its own base"
19: base (electronics) the part of a transistor that separates the emitter from the collector
Verb:
1: base, establish, ground, found use as a basis for; found on; "base a claim on some observation"
2: base, free-base use (purified cocaine) by burning it and inhaling the fumes
3: send, base, station, post, place assign to a station
Adjective:
1: basal, basic, base serving as or forming a base; "the painter applied a base coat followed by two finishing coats"
2: inferior, base (used of metals) consisting of or alloyed with inferior metal; "base coins of aluminum"; "a base metal"
3: lowly, base, humble, lowborn, baseborn of low birth or station (`base' is archaic in this sense); "baseborn wretches with dirty faces"; "of humble (or lowly) birth"
4: dishonorable, unethical, wrong, dishonourable, base, immoral not adhering to ethical or moral principles; "base and unpatriotic motives"; "a base, degrading way of life"; "cheating is dishonorable"; "they considered colonialism immoral"; "unethical practices in handling public funds"
5: ignoble, base, meanspirited, mean having or showing an ignoble lack of honor or morality; "that liberal obedience without which your army would be a base rabble"- Edmund Burke; "taking a mean advantage"; "chok'd with ambition of the meaner sort"- Shakespeare; "something essentially vulgar and meanspirited in politics"
6: baseborn, illegitimate, base illegitimate
7: imitative, base, counterfeit debased; not genuine; "an attempt to eliminate the base coinage"