tot
     n 1: a small amount (especially of a drink); "a tot of rum"
     2: a young child [syn: {toddler}, {yearling}, {bambino}]
     v : determine the sum of; "Add all the people in this town to
         those of the neighboring town" [syn: {total}, {tot up}, {sum},
          {sum up}, {summate}, {tote up}, {add}, {add together}, {tally},
          {add up}]
     [also: {totting}, {totted}]
Source: WordNet® 2.0

TOT
     Totally Off-Topic (telecommunication-slang, Usenet, IRC)
     
     
Source: Virtual Entity of Relevant Acronyms