finder
/ˈfaɪndə(r)/noun
1- a person that finds someone or something发现者; 寻得者。
1.1
- a small telescope attached to a large one to locate an object for observation（附于大望远镜上的）寻星镜。
1.2
- the viewfinder of a camera（摄像机或照相机的）取景器。
短语
finders keepers (losers weepers)
- informal used, often humorously, to assert that whoever finds something by chance is entitled to keep it〈非正式, 常幽默〉谁发现就归谁。