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  1.                 From WordNet dictionary, version 3.0:
                

    
                
                  
    s
n. 1. 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites
Synonyms: second, sec
2. an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
Synonyms: sulfur, S, sulphur, atomic number 16
3. the cardinal compass point that is at 180 degrees
Synonyms: south, due south, southward, S
4. a unit of conductance equal to the reciprocal of an ohm
Synonyms: mho, siemens, reciprocal ohm, S
5. the 19th letter of the Roman alphabet
Synonyms: S
6. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
Synonyms: randomness, entropy, S

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