base

The base of something is usually the foundation, starting point, or main ingredient of something. A soup base is the flavoring or broth you use to get your soup started.

If you're a soldier, you might live on a base ("place where you're stationed"). When your unit plays softball, you must touch each base before scoring. The bottom of pentagon-shaped home plate is its base ("bottom"). Yelling at or pushing the umpire is considered base ("mean-spirited") behavior. At end of the season, your team might get a trophy, which sits on a base ("pedestal"), or a plaque made of brass, an alloy of zinc, which is base metal (it corrodes easily).

Definitions of base
  1. noun
    lowest support of a structure
    “it was built on a base of solid rock”
    synonyms: foot, foundation, fundament, groundwork, substructure, understructure
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    bed
    a foundation of earth or rock supporting a road or railroad track
    raft foundation
    a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete
    railroad bed
    a bed on which railroad track is laid
    roadbed
    a bed supporting a road
    type of:
    support
    supporting structure that holds up or provides a foundation
  2. noun
    a support or foundation
    “the base of the lamp”
    synonyms: pedestal, stand
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    brass monkey
    a metal stand that formerly held cannon balls on sailing ships
    staddle
    a base or platform on which hay or corn is stacked
    trivet
    a stand, often with short feet, used under a hot dish on a table
    trivet
    a three-legged metal stand for supporting a cooking vessel in a hearth
    type of:
    support
    any device that bears the weight of another thing
  3. noun
    a flat bottom on which something is intended to sit
    “a tub should sit on its own base
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    type of:
    bottom, underside, undersurface
    the lower side of anything
  4. noun
    the bottom or lowest part
    “the base of the mountain”
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    type of:
    part, piece
    a portion of a natural object
  5. noun
    the bottom side of a geometric figure from which the altitude can be constructed
    “the base of the triangle”
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    type of:
    flank
    a subfigure consisting of a side of something
  6. noun
    (anatomy) the part of an organ nearest its point of attachment
    “the base of the skull”
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    type of:
    bottom
    the lowest part of anything
  7. noun
    a lower limit
    synonyms: floor
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    types:
    price floor
    floor below which prices are not allowed to fall
    wage floor
    floor below which wages are not allowed to fall
    type of:
    control
    the economic policy of controlling or limiting or curbing prices or wages etc.
  8. adjective
    serving as or forming a base
    “the painter applied a base coat followed by two finishing coats”
    synonyms: basal
    basic
    pertaining to or constituting a base or basis
  9. noun
    the most important or necessary part of something
    synonyms: basis
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    type of:
    component, component part, constituent, moiety, part, portion
    something determined in relation to something that includes it
  10. noun
    the fundamental assumptions from which something is begun or developed or calculated or explained
    synonyms: basis, cornerstone, foundation, fundament, groundwork
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    types:
    meat and potatoes
    the fundamental part
    type of:
    assumption, supposal, supposition
    a hypothesis that is taken for granted
  11. noun
    the place where you are stationed and from which missions start and end
    synonyms: home
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    type of:
    location
    a point or extent in space
  12. noun
    installation from which a military force initiates operations
    “the attack wiped out our forward bases
    synonyms: base of operations
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    air base, air station
    a base for military aircraft
    army base
    a large base of operations for an army
    firebase
    an artillery base to support advancing troops
    navy base
    base of operations for a naval fleet
    rocket base
    a military base for rocket missiles
    type of:
    military installation
    any facility servicing military forces
  13. noun
    the stock of basic facilities and capital equipment needed for the functioning of a country or area
    “the industrial base of Japan”
    synonyms: infrastructure
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    type of:
    fund, stock, store
    a supply of something available for future use
  14. noun
    (linguistics) the form of a word after all affixes are removed
    synonyms: radical, root, root word, stem, theme
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    type of:
    descriptor, form, signifier, word form
    the phonological or orthographic sound or appearance of a word that can be used to describe or identify something
  15. noun
    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
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    type of:
    ingredient
    a component of a mixture or compound
  16. verb
    use as a basis for; found on
    base a claim on some observation”
    synonyms: establish, found, ground
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    types:
    build
    found or ground
  17. verb
    situate as a center of operations
    “we will base this project in the new lab”
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    type of:
    locate, situate
    determine or indicate the place, site, or limits of, as if by an instrument or by a survey
  18. noun
    a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
    synonyms: nucleotide
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    base pair
    one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA
    AMP, adenosine monophosphate, adenylic acid
    a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
    ADP, adenosine diphosphate
    an ester of adenosine that is converted to ATP for energy storage
    ATP, adenosine triphosphate
    a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
    A, deoxyadenosine monophosphate
    one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    C, deoxycytidine monophosphate
    one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    G, deoxyguanosine monophosphate
    one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    T, deoxythymidine monophosphate
    one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    muton
    the smallest unit of DNA where a mutation can occur
    U, uracil
    a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
    type of:
    ester
    formed by reaction between an acid and an alcohol with elimination of water
  19. noun
    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”
    synonyms: alkali
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    pyridine
    a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
    purine
    a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
    purine
    any of several bases that are derivatives of purine
    glyoxaline, imidazole, iminazole
    an organic base C3H4N2; a histamine inhibitor
    cyanuramide, melamine
    a white crystalline organic base; used mainly in making melamine resins
    pyrimidine
    any of several basic compounds derived from pyrimidine
    A, adenine
    (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
    C, cytosine
    a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
    G, guanine
    a purine base found in DNA and RNA; pairs with cytosine
    T, thymine
    a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
    triphosphopyridine
    a pyridine ring with three phosphorus groups
    type of:
    chemical compound, compound
    (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
  20. noun
    (numeration system) the positive integer that is equivalent to one in the next higher counting place
    synonyms: radix
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    type of:
    number
    a concept of quantity involving zero and units
  21. noun
    a place that the runner must touch before scoring
    synonyms: bag
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    first base
    the base that must be touched first by a base runner in baseball
    home, home base, home plate, plate
    (baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score
    second base
    the base that must be touched second by a base runner in baseball
    third, third base
    the base that must be touched third by a base runner in baseball
    type of:
    baseball equipment
    equipment used in playing baseball
  22. noun
    (electronics) the part of a transistor that separates the emitter from the collector
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    electrode
    a conductor used to make electrical contact with some part of a circuit
  23. verb
    use (purified cocaine) by burning it and inhaling the fumes
    synonyms: free-base
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    type of:
    do drugs, drug
    use recreational drugs
  24. adjective
    of low birth or station (`base' is archaic in this sense)
    synonyms: baseborn, humble, lowly
    lowborn
    of humble birth or origins
  25. adjective
    debased; not genuine
    “an attempt to eliminate the base coinage”
    Synonyms:
    counterfeit, imitative
    not genuine; imitating something superior
  26. adjective
    illegitimate
    synonyms: baseborn
    illegitimate
    of marriages and offspring; not recognized as lawful
  27. adjective
    not adhering to ethical or moral principles
    base and unpatriotic motives”
    “a base, degrading way of life”
    synonyms: immoral
    wrong
    contrary to conscience or morality or law
  28. adjective
    having or showing an ignoble lack of honor or morality
    “"that liberal obedience without which your army would be a base rabble"- Edmund Burke”
    synonyms: mean, meanspirited
    ignoble
    completely lacking nobility in character or quality or purpose
  29. adjective
    (used of metals) consisting of or alloyed with inferior metal
    base coins of aluminum”
    “a base metal”
    Synonyms:
    inferior
    of low or inferior quality
Word Family