sqin Two-dimensional meas Small measure of area: Abbr Small meas Postage stamp size, briefly One of 6,272,640 in an acre: Abbr One of 16 in a 4x4 tile: Abbr Certain area meas Area unit (abbr.) Ad space meas Abbr. in many an area measure Area meas. 1/64 of a checkerboard, maybe: Abbr. Newspaper ad meas. Meas. of area Newspaper ad meas Measure of area: Abbr Area meas Small area meas Newspaper space meas Magazine ad meas