1. Based on recognition or comprehension without previous study
2. Payable on presentation

The detection of light by an eye, which can form images of the outside world.

1. To get or catch sight of
2. To look at through or as if through a sight; especially; to test for straightness
3. To aim by means of sights
4. To equip with sights; to adjust the sights of
5. To take aim
6. To look carefully in a particular direction