1. A mark on a piece of paper or on a display screen (or any surface which can be drawn or written on) which is small, round and completely filled in. English = point, dot, spot.
2. A mark in writing that is small, round and completely filled in which marks the end of a sentence. English = full stop, stop, period.
3. A dot that separates the whole numbers from the fractions in the writing and signing of numbers and amounts of money (dollars from cents). English = decimal point, point.
4. In geometry, something having position but not spatial extent, magnitude, dimension, or direction, for example the intersection of two lines. English = point.