n.[U]

1. 不履行，违约，拖欠
   be in default on a loan

   拖欠借款

2. 不参加（比赛）；（中途）弃权
   The other team didn't arrive, so our team won by default.

   由于对方球队未到，我队以其弃权而获胜。

3. 【律】缺席
   A default judgment was issued against the defendant.

   被告受到了缺席审判。

4. 【电脑】隐含值，系统默认值

vi.

1. 不履行，拖欠[（+on/in）]
   Let's both try not to default on our commitments.

   让我们双方一起努力，不违反自己的承诺。

2. 不出场；不参加；不到案；弃权
   The player defaulted in the tournament because of her injury.

   在这次循环赛中，这位运动员由于受伤而弃权。

vt.

1. 不履行，拖欠
   Foreign debts were defaulted.

   外债没有如期偿还。

2. 对……处以缺席裁判
3. 不参加（比赛）

n.

1. failure to fulfil an obligation, especially to repay a loan or appear in a law court.
2. a preselected option adopted by a computer program or other mechanism when no alternative is specified.

v.

1. fail to fulfil an obligation:
   some had defaulted on student loans.
   ▸declare (a party) in default and give judgement against that party.
2. (default to) revert automatically to (a preselected option).