a very small area or point
find or describe exactly (the nature or cause of sth)
show the exact position of
"they were strangers sharing a pinpoint of time together"
"the plane was just a speck in the sky"
"can you pinpoint the position of the enemy?"
"The chemists could not nail the identity of the chromosome"
His eyes were pinpoints of rage.
出自： V. Gornick
No longer were any pinpoints of light visible.
出自： R. Rendell
Wine critic Harriet Lembeck..can pinpoint a vineyard and vintage with uncanny accuracy.