Entry 3 senses · 3 variants Webster, 1913 Dop · IPA /dɑp/ n. v. i. n. 01 n. A little copper cup in which a diamond is held while being cut. 1. A little copper cup in which a diamond is held while being cut. 02 v. i. To dip. 1. To dip.[Obs.] 03 n. A dip; a low courtesy. 1. A dip; a low courtesy.[Obs.]