動(dòng)詞 detain:

1. deprive of freedom; take into confinement
   同義詞：confine
2. stop or halt
   同義詞：stay, delay
3. cause to be slowed down or delayed
   同義詞：delay, hold up

1. The act of detaining.
   扣押，拘留拘留的行為
2. A period of time during which a vehicle, person, or material suspected of carrying a contagious disease is detained at a port of entry under enforced isolation to prevent disease from entering a country.
   檢疫期，隔離期當(dāng)運(yùn)輸工具、人或材料被懷疑帶有傳染性疾病，被扣留在港口進(jìn)行強(qiáng)行隔離的一段期限，以防止疾病傳入某個(gè)國家

de.tain

v.tr.（及物動(dòng)詞）
de.tained,de.tain.ing,de.tains
To keep from proceeding; delay or retard.See Synonyms at delay
阻止；拖延參見 delay
To keep in custody or temporary confinement:
拘留：被監(jiān)禁或暫時(shí)關(guān)押：
例句：
The police detained several suspects for questioning. The disruptive students were detained after school until their parents had been notified.
警察拘留了許多疑犯進(jìn)行審問，搗亂的學(xué)生在放學(xué)后被拘禁了，直到通知他們的家長

Obsolete To retain or withhold (payment or property, for example).
【廢語】 扣押：保留（如款項(xiàng)或財(cái)產(chǎn)）

來源：
Middle English deteinen
中古英語 deteinen
from Old French detenir
源自 古法語 detenir
from Vulgar Latin *dôtenore
源自 俗拉丁語 *dôtenore
from Latin dôtinôre
源自 拉丁語 dôtinôre
dô- [de-]
dô- [前綴，表否定]
tenôre [to hold] * see ten-
tenôre [保留，關(guān)押] *參見 ten-

【引伸】
detain.ment
n.（名詞）