Dot Size: A dot size is the diameter of a single dot in the output of a printer.
Addressability: Addressability is a measure of number of dots that can be printed per inch.
Inter-dot distance: It is a reciprocal of addressability. If addressability is less than the inter-dot distance will be large. In general for getting smooth shapes the inter-dot distance should be less.
Resolution: It is the number of distinguishable lines that a printer can print per inch. Resolution depends on dot size and cross section of a dot.