Also in "Okrand's Notes" in HolQeD 2:4 p. 18. " 'To win' a competition is to Qap. (If it's a decisive or particularly gratifying victory, they'd say Qapchu', even though that's a bit redundant.) In TKD, Qap is translated as'succeed, work, function.' To a Klingon, to win is to function perfectly. The opposite notion, 'lose,' is commonly luj, also meaning 'fail.' "KGT adds the meaning "lose (not win)."