1. a unit of surface area equal to 100 square meters

    Synonyms : are
    Type Of : square measure, area unit
  2. a state in south central United States; one of the Confederate states during the American Civil War

    Synonyms : ark., arkansas, land of opportunity
  3. a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere

    Synonyms : argon, atomic number 18
    Type Of : element, chemical element, argonon, inert gas, noble gas


  1. an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behavior

    Synonyms : amygdaloid nucleus, corpus amygdaloideum
    Type Of : basal ganglion


  1. a binding commitment to do or give or refrain from something

    Synonyms : pledge
    Type Of : dedication, commitment
    Examples :
    • an assurance of help when needed
  2. freedom from doubt; belief in yourself and your abilities

    Synonyms : authority, confidence, self-assurance, self-confidence, sureness
    Type Of : certainty
    Examples :
    • his assurance in his superiority did not make him popular
  3. a British term for some kinds of insurance

    Type Of : insurance
  4. a statement intended to inspire confidence

    Type Of : statement
    Examples :
    • the President's assurances were not respected


  1. the act of accumulating

    Synonyms : accruement, accumulation
    Type Of : increase, step-up


  1. a cheerful and agreeable mood

    Synonyms : good humor, good humour, good temper
    Type Of : humour, temper, mood, humor
  2. a disposition to be friendly and approachable (easy to talk to)

    Synonyms : affability, affableness, amiableness, bonhomie, geniality
    Type Of : friendliness


  1. lacking professional skill or expertise

    Synonyms : amateurish, inexpert, unskilled
    Examples :
    • a very amateurish job
  2. engaged in as a pastime

    Synonyms : recreational, unpaid
    Examples :
    • an amateur painter
    • gained valuable experience in amateur theatricals
  3. an athlete who does not play for pay

    Antonyms : professional
    Type Of : jock, athlete
  4. someone who pursues a study or sport as a pastime

    Type Of : soul, individual, person, somebody, mortal, someone

ask in

  1. ask to enter

    Synonyms : invite
    Type Of : request, bespeak, call for, quest, ask for


  1. related to or dealing with or devoted to archaeology

    Synonyms : archaeologic, archaeological, archeologic


  1. an often persistent bodily disorder or disease; a cause for complaining

    Synonyms : complaint, ill
    Type Of : disorder, upset


  1. depending on free oxygen or air

    Synonyms : aerophilic, aerophilous
    Antonyms : anaerobic
    Examples :
    • aerobic fermentation
  2. based on or using the principles of aerobics; enhancing respiratory and circulatory efficiency

    Antonyms : anaerobic
    Examples :
    • aerobic dance
    • running is very aerobic