Noun

• S: (n) second, sec, s (1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites)
• S: (n) sulfur, S, sulphur, atomic number 16 (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))
• direct hyponym / full hyponym
• substance holonym
• direct hypernym / inherited hypernym / sister term
• S: (n) chemical element, element (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)
• derivationally related form
• S: (n) south, due south, southward, S (the cardinal compass point that is at 180 degrees)
• S: (n) mho, siemens, reciprocal ohm, S (a unit of conductance equal to the reciprocal of an ohm)
• S: (n) S, s (the 19th letter of the Roman alphabet)
• S: (n) randomness, entropy, S ((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"