(1)主债务(→principal debt)

(2)主要义务
即主要合同义务，指基于当事人的主要缔约目的而产生的义务。例如，在买卖合同中卖方的主要义务是向买方转移标的物的所有权。

• demurrer to indictment
• demurrer to interrogatory
• demurrer to plea
• demurrer to plea in abatement
• demurrer to substance
• demurrer to the jurisdiction
• demurrer to the person
• demy sangue
• demy sanke
• den and strond
• denariata terrae
• denariate
• nuper obiitt
• nuptiae
• nuptiae justiae
• nuptiae secundae
• nuptial
• Nuptias non concubitus, sed consensus facit.
• Nuremburg trials
• nurture period
• nurus
• nusance
• nutander
• nutauntre
• nute