1. the psychological result of perception and learning and reasoning

    Synonyms : cognition, noesis
    Type Of : psychological feature


  1. bend the knees and bow in a servile manner

    Synonyms : genuflect, scrape
    Type Of : bow
  2. a former Chinese custom of touching the ground with the forehead as a sign of respect or submission

    Synonyms : kotow
    Type Of : bow, obeisance, bowing
  3. try to gain favor by cringing or flattering

    Synonyms : bootlick, fawn, kotow, suck up, toady, truckle
    Type Of : flatter, blandish
    Examples :
    • He is always kowtowing to his boss


  1. making great mental demands; hard to comprehend or solve or believe

    Synonyms : baffling, elusive, problematic, problematical, tough
    Examples :
    • I faced the knotty problem of what to have for breakfast
  2. highly complex or intricate and occasionally devious

    Synonyms : byzantine, convoluted, involved, tangled, tortuous
    Examples :
    • a knotty problem
  3. tangled in knots or snarls

    Synonyms : snarled, snarly
  4. used of old persons or old trees; covered with knobs or knots

    Synonyms : gnarled, gnarly, knobbed, knotted


  1. call forth (emotions, feelings, and responses)

    Synonyms : arouse, elicit, enkindle, evoke, fire, provoke, raise
    Type Of : create, make
  2. cause to start burning

    Synonyms : conflagrate, enkindle, inflame
    Type Of : ignite, light
    Examples :
    • The setting sun kindled the sky with oranges and reds
  3. catch fire

    Synonyms : inflame
    Type Of : flare up
    Examples :
    • The dried grass of the prairie kindled, spreading the flames for miles


  1. express grief verbally

    Synonyms : lament
    Type Of : express feelings, express emotion
  2. intense or sharp

    Synonyms : exquisite
  3. painful as if caused by a sharp instrument

    Synonyms : cutting, knifelike, lancinate, lancinating, piercing, stabbing
    Examples :
    • keen winds
  4. having or demonstrating ability to recognize or draw fine distinctions

    Synonyms : acute, discriminating, incisive, knifelike, penetrating, penetrative, piercing, sharp
  5. very good

    Synonyms : bang-up, bully, corking, cracking, dandy, great, groovy, neat, nifty, not bad, old, peachy, slap-up, smashing, swell
  6. a funeral lament sung with loud wailing

    Type Of : lament, threnody, requiem, coronach, dirge
  7. having a sharp cutting edge or point

    Examples :
    • a keen blade