sice /ˈsaɪs/noun 1verb 1forms 3 noun1 •(no longer used) The number six in a game of dice.In their common game, the most fortunate throw is thought to have been three Sices[…] — 1680 verb1 •(slang) To excite.He was siced about going, and I could tell he seemed to be especially pressed about having a sidekick. And, best of all, admission was free with the passes he'd copped from some honey he met at lunch. — 2001 formssiced · sicing · sices