名詞 defense:

1. (sports) the team that is trying to prevent the other team from scoring
   同義詞：defence, defending team
2. military action or resources protecting a country against potential enemies
   同義詞：defence, defensive measure
3. the defendant and his legal advisors collectively
   同義詞：defence, defense team, defense lawyers
4. protection from harm
   同義詞：defence
5. a structure used to defend against attack
   同義詞：defensive structure, defence
6. the speech act of answering an attack on your assertions
   同義詞：refutation, defence
7. the justification for some act or belief
   同義詞：defence, vindication
8. a defendant's answer or plea denying the truth of the charges against him
   同義詞：defence, denial, demurrer
9. an organization of defenders that provides resistance against attack
   同義詞：defence, defense force, defence force
10. the federal department responsible for safeguarding national security of the United States; created in 1947
    同義詞：Department of Defense, Defense Department, United States Department of Defense, DoD
11. (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires
    同義詞：defense mechanism, defense reaction, defence mechanism, defence reaction, defence

1. The magazine's disclosure of defense secrets caused great attention.
   該雜志對(duì)防務(wù)內(nèi)幕的透露引起了極大的關(guān)注。
2. Whether a gun is a weapon of offence or a weapon of defense depends on which end of it you are at.
   槍是攻擊武器還是防御武器，要看你的目的而定。
3. The army, navy and airforce are all controlled by the Ministry of Defense.
   陸海空軍皆由國(guó)防部控制。
4. She's on attachment to the Ministry of Defense.
   她現(xiàn)在隸屬于國(guó)防部。
5. A park at the southern tip of Manhattan Island at the upper end of New York Bay in southeast New York. It is the site of early Dutch and English fortifications and of Castle Clinton, built in1808 for the defense of the harbor.
   炮臺(tái)公園曼哈頓島南端的公園，位于紐約東南部的紐約灣北端。1808年為保護(hù)港口而建，早期荷蘭和英國(guó)的防御工事及克林頓城堡就在此地
6. A defense mechanism in which there is an unconscious shift of emotions, affect, or desires from the original object to a more acceptable or immediate substitute.
   移情作用; 情感轉(zhuǎn)移一種防衛(wèi)機(jī)制，情感、影響、愿望從原始目標(biāo)潛意識(shí)地轉(zhuǎn)移到一個(gè)立即或更可接受的替代對(duì)象
7. The Senate has voted to support the President's defense plans.
   參議院已經(jīng)投票支持總統(tǒng)的防衛(wèi)計(jì)劃。
8. The best defense is offense.
   先下手為強(qiáng)/以攻為守。

de.fense

n.Abbr. def.（名詞）縮寫(xiě) def.
The act of defending against attack, danger, or injury.
防御：保護(hù)以使不受攻擊、危險(xiǎn)或傷害的行為
A means or method of defending or protecting.
護(hù)衛(wèi)措施：防御或保護(hù)的手段或方法
An argument in support or justification of something.See Synonyms at apology
辯護(hù)：為支持或證明某事的正確性所作的爭(zhēng)辯參見(jiàn) apology
Law
【法律】
The action of the defendant in opposition to complaints against him or her.
答辯，辯護(hù)：被告對(duì)起訴進(jìn)行的答辯
The defendant and his or her legal counsel.
辯方，被告方：包括被告和他（她）的合法的辯護(hù)律師
The science or art of defending oneself; self-defense.
防衛(wèi)技巧，自衛(wèi)：保護(hù)自己的技術(shù)或技巧；自衛(wèi)
Sports The team or those players on the team attempting to stop the opposition from scoring.
【體育運(yùn)動(dòng)】 防守隊(duì)員：試圖阻止對(duì)方進(jìn)球的球隊(duì)或球隊(duì)隊(duì)員們
The military, governmental, and industrial complex, especially as it authorizes and manages weaponry production.
防御體系：軍事、 政府和工業(yè)部門(mén)的綜合型系統(tǒng)，尤指當(dāng)該企業(yè)有權(quán)進(jìn)行武器生產(chǎn)時(shí)
v.tr.（及物動(dòng)詞）
de.fensed,de.fens.ing,de.fens.es 【體育運(yùn)動(dòng)】
To attempt to stop (the opposition) from scoring.
企圖阻止（對(duì)方）進(jìn)球得分

來(lái)源：
Middle English
中古英語(yǔ)
from Old French
源自 古法語(yǔ)
from Latin dôfônsa [from feminine past participle of] dôfendere [to ward off] * see defend
源自 拉丁語(yǔ) dôfônsa [] 源自dôfendere的陰性過(guò)去分詞 [避開(kāi)，擋開(kāi)] *參見(jiàn) defend

【引伸】
defense.less
adj.（形容詞）
defense.lessly
adv.（副詞）
defense.lessness
n.（名詞）