sign in WordNet English dictionary

1. an event that is experienced as indicating important things to come
   "he hoped it was an augury"; "it was a sign from God"
   augury  sign  foretoken  preindication 
   
2. (astrology) one of 12 equal areas into which the zodiac is divided
   sign of the zodiac  star sign  sign  mansion  house  planetary house 
   
3. a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
   "he showed signs of strain"; "they welcomed the signs of spring"
   sign  mark 
   
4. having an indicated pole (as the distinction between positive and negative electric charges)
   "he got the polarity of the battery reversed"; "charges of opposite sign"
   polarity  sign 
   
5. structure displaying a board on which advertisements can be posted
   "the highway was lined with signboards"
   signboard  sign 
   
6. a public display of a message
   "he posted signs in all the shop windows"
   sign 
   
7. a gesture that is part of a sign language
   sign 
   
8. any nonverbal action or gesture that encodes a message
   "signals from the boat suddenly stopped"
   signal  signaling  sign 
   
9. a character indicating a relation between quantities
   "don't forget the minus sign"
   sign 
   
10. a fundamental linguistic unit linking a signifier to that which is signified
    "The bond between the signifier and the signified is arbitrary"--de Saussure
    sign 
    
11. (medicine) any objective evidence of the presence of a disorder or disease
    "there were no signs of asphyxiation"
    sign 
    

1. make the sign of the cross over someone in order to call on God for protection; consecrate
   bless  sign 
   
2. engage by written agreement
   "They signed two new pitchers for the next season"
   sign  contract  sign on  sign up 
   
3. approve and express assent, responsibility, or obligation
   "All parties ratified the peace treaty"; "Have you signed your contract yet?"
   sign  ratify 
   
4. be engaged by a written agreement
   "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera"
   sign 
   
5. communicate silently and non-verbally by signals or signs
   "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"
   sign  signal  signalize  signalise 
   
6. mark with one's signature; write one's name (on)
   "She signed the letter and sent it off"; "Please sign here"
   sign  subscribe 
   
7. communicate in sign language
   "I don't know how to sign, so I could not communicate with my deaf cousin"
   sign 
   
8. place signs, as along a road
   "sign an intersection"; "This road has been signed"
   sign 
   

1. used of the language of the deaf
   gestural  sign  signed  sign-language