tu'oi
KOhA7
experimental cmavo
null connective operand; used to fill empty places in JOI
Used with JOI to create sets/masses/sequences containing zero or one members. "tu'oi ce tu'oi" = the empty set (lo kutysetmima), "la .djon. joi tu'oi" = the mass consisting of only John. See tu'o, zi'o, zai'o