titi /ˈtiːtiː/ noun4 •Any New World monkey of the subfamily Callicebinae, native to South America, distinguished by their long soft fur. •A tree of the southern United States (Cliftonia monophylla) having glossy leaves and racemes of fragrant white flowers succeeded by one-seeded drupes. •Any tree of the related genus Cyrilla. •(New-Zealand) Mutton bird.Titis are impressive fliers, migrating from their breeding islands in the Southern Hemisphere to sub-arctic waters between Japan and Alaska and back again each year […] — 2002 formstitis