a.

1. 安全的，無危險的[（+from/against）]
   Now my house is secure against burglary.

   現在我的房子無被盜竊之危險。

2. 安心的，無憂慮的[（+about）]
   You have made me feel secure.

   你使我覺得放心。

3. 有把握的，確定無疑的[（+of）]
   Our success is secure.

   我們的成功是有把握的。

4. 牢固的；穩當的；牢靠的
   His place in history is now secure.

   他在歷史上的地位現在已經穩固了。

5. 被妥善保管的；被拘留的

vt.

1. 把……弄牢；關緊
   He secured all the windows before he left.

   他走之前關緊了所有的窗戶。

2. 使安全；掩護；保衛[（+from/against）]
   Some measures are needed to secure the farmland against shifting sand.

   需要採取措施使農田免遭流沙的侵襲。

3. 弄到，獲得；替……弄到[（+for）][O1]
   He secured a position in a store at US$400 a week.

   他在一家商店獲得了一份每週四百美元的工作。

4. 保證；為（借款等）作保；向（債權人）提供保證
5. 引起，招致
   His words secured his father's displeasure.

   他的話招致他父親的不悅。

6. 拘留，監禁

vi.

1. 獲得安全；變得安全[（+against）]
   It is highly necessary to secure against the dangers of the coming typhoon.

   預防即將來臨的颱風的危險很有必要。

   You must order your tickets early to secure against disappointment!

   你必須早點訂票以免失望！

2. 【海】（船上人員）停止工作
3. 【海】停靠碼頭；拋錨

adj.

1. fixed or fastened so as not to give way, become loose, or be lost.
2. certain to remain safe and unthreatened.
   ▸protected against attack or other criminal activity.
3. feeling free from fear or anxiety.
   ▸ (secure of) dated feeling no doubts about attaining.
4. (of a place of detention) having provisions against the escape of inmates.

v.

1. fix or fasten securely.
2. protect against threats.
3. succeed in obtaining.
   ▸seek to guarantee repayment of (a loan) by having a right to take possession of an asset in the event of non-payment.
4. Surgery  compress (a blood vessel) to prevent bleeding.