1. a woman advocate of women's right to vote (especially a militant advocate in the United Kingdom at the beginning of the 20th century)

    Type Of : feminist, women's rightist, libber, suffragist, women's liberationist


  1. shake, as from cold

    Synonyms : shudder
    Type Of : move involuntarily, move reflexively
    Examples :
    • The children are shivering--turn on the heat!
  2. an almost pleasurable sensation of fright

    Synonyms : chill, frisson, quiver, shudder, thrill, tingle
    Type Of : fear, fearfulness, fright
  3. a reflex motion caused by cold or fear or excitement

    Synonyms : shake, tremble
    Type Of : inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex
  4. tremble convulsively, as from fear or excitement

    Synonyms : shudder, thrill, throb
    Type Of : tremble


  1. a crystal of snow

    Synonyms : flake
    Type Of : crystal
  2. white Arctic bunting

    Synonyms : plectrophenax nivalis, snow bunting, snowbird
    Type Of : bunting


  1. the trait of behaving in an obscene manner

    Synonyms : bawdiness, lewdness, obscenity, salaciousness
    Type Of : indecency


  1. incapable of reproducing

    Synonyms : infertile, unfertile
    Antonyms : fertile
  2. free of or using methods to keep free of pathological microorganisms

    Synonyms : aseptic
    Examples :
    • a sterile operating area
  3. deficient in originality or creativity; lacking powers of invention

    Synonyms : unimaginative, uninspired, uninventive
    Examples :
    • a sterile ideology lacking in originality


  1. without advance preparation

    Synonyms : ad lib, ad libitum, impromptu
  2. in a spontaneous manner

    Examples :
    • this shift occurs spontaneously


  1. a post bearing a sign that gives directions or shows the way

    Synonyms : guidepost
    Type Of : sign
  2. mark with a signpost, as of a path

    Type Of : mark


  1. a neurotransmitter involved in e.g. sleep and depression and memory

    Synonyms : 5-hydroxytryptamine
    Type Of : monoamine neurotransmitter


  1. having or feeling no doubt or uncertainty; confident and assured

    Synonyms : certain
    Antonyms : unsure
    Examples :
    • was sure (or certain) she had seen it
    • was very sure in his beliefs
    • sure of her friends
  2. certain to occur; destined or inevitable

    Synonyms : certain
    Examples :
    • sudden but sure regret
    • he is sure to win
  3. impossible to doubt or dispute

    Synonyms : indisputable
    Examples :
    • indisputable (or sure) proof
  4. exercising or taking care great enough to bring assurance

    Synonyms : certain
    Examples :
    • be sure to lock the doors
  5. reliable in operation or effect

    Synonyms : certain
    Examples :
    • a sure way to distinguish the two
    • wood dust is a sure sign of termites
  6. (of persons) worthy of trust or confidence

    Synonyms : trusted
    Examples :
    • a sure (or trusted) friend
  7. definitely or positively (`sure' is sometimes used informally for `surely')

    Synonyms : certainly, for certain, for sure, sure as shooting, sure enough, surely
    Examples :
    • the results are surely encouraging
    • it's going to be a good day for sure
    • they thought he had been killed sure enough
    • he'll win sure as shooting
    • they sure smell good
    • sure he'll come
  8. certain not to fail

    Examples :
    • a sure hand on the throttle
  9. infallible or unfailing

    Examples :
    • a sure (or true) sign of one's commitment
  10. physically secure or dependable

    Examples :
    • a sure footing
    • was on sure ground


  1. a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone

    Synonyms : sophism, sophistication
    Type Of : fallacy, false belief