1
- (of goods) having had two previous owners（物品）已两度有人使用过的, 三手的：
a third-hand dinner suit.
三手的宴会服。
2
- (of information) acquired from or via several intermediate sources and consequently not authoritative or reliable（信息）第三手的, 不可靠的, 不权威的：
the accounts are third-hand, told years after the event.
这传闻属第三手资料, 在事件发生数年之后才传开的。
- from or via several intermediate sources经几道中间环节, 间接地：
I heard about the case third-hand.
我间接地听说了这个案件。