音标：[ri'teinә]
n. 家臣, 侍从, 保持者
【化】 保持器; 定位器; 隔栅; 隔环; 护圈; 止动器; 止动装置
【医】 固位体(牙), 保留器, 保持器
【经】 保留者, 律师(聘请)费
在线英汉词典

retainer的短语、例句：

etainer n 1 fee paid to sb (esp a barrister) in advance for services as and when one may need them聘用定金（尤指预付给讼务律师的）
[attrib 作定语] a retainer agreement 预付聘用费的协议. 2 reduced rent paid to reserve a flat, etc for one´s use while one is absent from it （为外出期间保留租房等而付的）定金.3 (arch 古) servant, esp one who has been with a family or person for a long time 仆人（尤指服务多年的）
(joc 谑) an old family retainer 老家仆.