The counter is the partially or fully enclosed space within a character. The inner area could be bounded by curves, strokes, or stems. Letters containing closed counters include B, D, O, P, Q, R, a, b, d, etc. You can find open counters in such letters as c, h, s, etc., and also in figures like 0, 4, 6, 8, and 9.

Typefaces with large counters are meant for road signs so drivers can see them distinctly at a distance and texts intended for people with vision problems or small print, especially on poor-quality paper.^[1]