pinpoint
1. [ verb ] locate exactly
Synonyms: nail
Examples:

"can you pinpoint the position of the enemy?" "The chemists could not nail the identity of the chromosome"

Related terms: locate speck
2. [ adjective ] meticulously precise
Examples:

"pinpoint accuracy"

Related terms: precise
3. [ noun ] a very small spot
Synonyms: speck
Examples:

"the plane was just a speck in the sky"

Related terms: spot
4. [ noun ] a very brief moment
Examples:

"they were strangers sharing a pinpoint of time together"

Related terms: moment
5. [ noun ] the sharp point of a pin
Related terms: point