“Signed”是形容词或过去分词,常见意思是“已签署的 / 已签名的”,指文件、信件等上面已经有当事人的签名;也可指“用手语表达的”。(另有较少见用法如“有符号的”,如signed integer。)
/saɪnd/
I finally received the signed contract.
我终于收到了已签署的合同。
The artist donated a signed copy of the book, which was later auctioned for charity.
这位艺术家捐出了一本签名版的书,后来被拍卖用于慈善。
“Signed”来自动词 sign(签名、署名),而sign源自拉丁语 signum(标记、记号)。加上过去式/过去分词词尾 -ed 后,表示“已经被签名/签署的”。