Entry 2 senses Webster, 1913 Redeye /(rĕd"ī`)/ · Red·eye · IPA /rˈɛdaɪ/ 01 n. The rudd. 1. The rudd.(Zool.) [Local, U.S.] 2. A scheduled public conveyance, such as a train or airplane, which travels late at night or overnight.[Colloq.]