1. A perceptible indication of something not immediately apparent (as a visible clue that something has happened) (synset 106659006)
    "he showed signs of strain"; "they welcomed the signs of spring"
  2. A public display of a message (synset 106806088)
    "he posted signs in all the shop windows"
  3. Any nonverbal action or gesture that encodes a message (synset 106804229)
    "signals from the boat suddenly stopped"
  4. Structure displaying a board on which advertisements can be posted (synset 104224949)
    "the highway was lined with signboards"
  5. (astrology) one of 12 equal areas into which the zodiac is divided (synset 108703415)
  6. (medicine) any objective evidence of the presence of a disorder or disease (synset 114325305)
    "there were no signs of asphyxiation"
  7. Having an indicated pole (as the distinction between positive and negative electric charges) (synset 113878771)
    "he got the polarity of the battery reversed"; "charges of opposite sign"
  8. An event that is experienced as indicating important things to come (synset 107300719)
    "he hoped it was an augury"; "it was a sign from God"
  9. A gesture that is part of a sign language (synset 106889194)
  10. A fundamental linguistic unit linking a signifier to that which is signified (synset 107290723)
    "The bond between the signifier and the signified is arbitrary"
  11. A character indicating a relation between quantities (synset 106824483)
    "don't forget the minus sign"
  1. Used of the language of the deaf (synset 300500206)
  1. Mark with one's signature;
    Write one's name (on) (synset 200998530)
    "She signed the letter and sent it off"; "Please sign here"
  2. Approve and express assent, responsibility, or obligation (synset 202470289)
    "All parties ratified the peace treaty"; "Have you signed your contract yet?"
  3. Be engaged by a written agreement (synset 200890750)
    "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera"
  4. Engage by written agreement (synset 202415071)
    "They signed two new pitchers for the next season"
  5. Communicate silently and non-verbally by signals or signs (synset 201041202)
    "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"
  6. Place signs, as along a road (synset 201500958)
    "sign an intersection"; "This road has been signed"
  7. Communicate in sign language (synset 200931122)
    "I don't know how to sign, so I could not communicate with my deaf cousin"
  8. Make the sign of the cross over someone in order to call on God for protection;
    Consecrate (synset 200868895)

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