When you reject something, you rule it out or dismiss it. If you're trying to pick a fancy restaurant to go to for your birthday, you'll probably reject the diner you went to just yesterday.

The verb reject has several shades of meaning. Reject can mean to refuse to accept or agree with something. If you don't believe space aliens are living on earth, you reject the idea — you just don't believe it. Reject can also mean to treat someone with contempt: "My former best friend rejected me to hang out with a different crowd — but I found new friends with whom I had more in common."

Definitions of reject
  1. verb
    refuse to accept or acknowledge
    “I reject the idea of starting a war”
    “The journal rejected the student's paper”
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    consider or hold as true
    react favorably to; consider right and proper
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    disbelieve, discredit
    reject as false; refuse to accept
    refuse to acknowledge, ratify, or recognize as valid
    challenge or except to a judge as being incompetent or interested, in canon and civil law
    reject (documents) as invalid
    disown, renounce, repudiate
    cast off
    brush aside, brush off, discount, dismiss, disregard, ignore, push aside
    bar from attention or consideration
    cold-shoulder, slight
    pay no attention to, disrespect
    consider unlikely or have doubts about
    cause to be distrusted or disbelieved
    disbelieve, distrust, mistrust, suspect
    regard as untrustworthy; regard with suspicion; have no faith or confidence in
    shrug off
    minimize the importance of, brush aside
    apostatise, apostatize, tergiversate
    abandon one's beliefs or allegiances
    abjure, forswear, recant, resile, retract
    formally reject or disavow a formerly held belief, usually under pressure
    swallow, take back, unsay, withdraw
    take back what one has said
    pass off
    flout, scoff
    treat with contemptuous disregard
    turn a blind eye
    refuse to acknowledge
    laugh away, laugh off
    deal with a problem by laughing or pretending to be amused by it
    confound, rebut, refute
    overthrow by argument, evidence, or proof
    refuse to accept or believe
    ignore someone's wishes
    type of:
    evaluate, judge, pass judgment
    form a critical opinion of
  2. verb
    deem wrong or inappropriate
    synonyms: disapprove
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    O.K., approve, okay, sanction
    give sanction to
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    express or raise an objection or protest or criticism or express dissent
    express strong disapproval of; deplore
    deter, discourage
    try to prevent; show opposition to
    demur, except
    take exception to
    challenge, take exception
    raise a formal objection in a court of law
    carp, cavil, chicane
    raise trivial objections
    be offended or bothered by; take offense with, be bothered by
    argue in protest or opposition
    make a stink, raise a stink, raise hell
    take strong and forceful action, as to object or express discontent
    type of:
    evaluate, judge, pass judgment
    form a critical opinion of
  3. verb
    refuse to accept
    synonyms: decline, pass up, refuse, turn down
    disdain, freeze off, pooh-pooh, scorn, spurn, turn down
    reject with contempt
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    accept, have, take
    receive willingly something given or offered
    have, receive
    get something; come into possession of
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    dishonor, dishonour
    refuse to accept
    refuse to accept and send back
  4. verb
    refuse entrance or membership
    “Black people were often rejected by country clubs”
    synonyms: refuse, turn away, turn down
    disdain, freeze off, pooh-pooh, scorn, spurn, turn down
    reject with contempt
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    admit, allow in, intromit, let in
    allow to enter; grant entry to
    serve as a means of entrance
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  5. verb
    dismiss from consideration or a contest
  6. verb
    reject with contempt
    synonyms: disdain, freeze off, pooh-pooh, scorn, spurn, turn down
    decline, pass up, refuse, turn down
    refuse to accept
    refuse, turn away, turn down
    refuse entrance or membership
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    rebuff, repel, snub
    reject outright and bluntly
    type of:
    balk, decline, refuse
    show unwillingness towards
  7. noun
    the person or thing that is rejected or set aside as inferior in quality
    synonyms: cull
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    type of:
    deciding, decision making
    the cognitive process of reaching a decision
  8. verb
    resist immunologically the introduction of some foreign tissue or organ
    “His body rejected the liver of the donor”
    synonyms: refuse, resist
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    type of:
    react, respond
    show a response or a reaction to something
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