tither UK /ˈtaɪðə/US /ˈtaɪðɚ/noun 2/ˈtɪðɚ/ noun 1forms 1 noun2 •One who pays tithes. •One who collects tithes. tither UK /ˈtɪðə/US /ˈtɪðɚ/ noun1 •a very anxious, excited, or distressed stateYou know, in the story of the Good Samaritan. So I was in a little bit of a tither about it. But I said to myself — — 1988 formstithers