adv 1: (used to introduce a logical conclusion) from that fact or
reason or as a result; "therefore X must be true";
"the eggs were fresh and hence satisfactory"; "we were
young and thence optimistic"; "it is late and thus we
must go"; "the witness is biased and so cannot be
trusted" [syn: therefore
2: (archaic) from this place; "get thee hence!"
3: from this time; "a year hence it will be forgotten"