- a tiny dot or point小点：
a pinpoint of light from a torch.
火把发出的小亮点。
attrib.
1- absolutely precise; to the finest degree精确的; 精细的：
this weapon fired shells with pinpoint accuracy.
这种武器发射炮弹的精确度非常高。
1.1
- tiny极小的：
a pinpoint hole.
小孔。
with obj.
- find or locate exactly精确地对准…的位置, 瞄准; 准确地确定…的位置：
one flare had pinpointed the target
一颗照明弹精确地指明了目标
figurative 〈喻〉it is difficult to pinpoint the source of his life's inspiration.
很难准确地查明他生活的灵感之源。