תַּנָּא, (preced.) teacher, esp. Tanna, an authority quoted in Mishnah and Boraitha, contrad. to אֲמוֹרָא. B. Mets. 3ᵃ, a. fr. ות׳ תונא and the Tanna (of the Mishnah) is a confirmation (confirms what I say).—ת׳ קמא, v. קַמָּא.—ת׳ ברא, v. בַּר I ch. B. Bath. 93ᵇ כל ת׳ בתרא וכ׳ (Ar. ברא) every later (Ar. outside) authority comes only to enlarge the sphere of the subject. Ḥull. 15ᵃ, v. אֲמוֹרָא; a. fr.—Sot. 22ᵃ (prov.) תני ת׳ ולא ידע וכ׳ a teacher teaches and knows not what he says (repeats verbatim what he has heard without understanding the subject).—Pl. תַּנָּאִים (h. form, fr. תַּנַּאי), תַּנָּאֵי (fr. תַּנָּאָה). Ib. הת׳ מבלי עולם the Tannaim (repeaters) ruin the world, expl. שמורין הלכה מתוך משנתן who give decisions based on traditions they have learned (without knowing their reasons and their application to practical cases).—Ber. 3ᵃ תרי ת׳ אליבא דר"מ these contradictory opinions are the relations of two Tannaim in behalf of R. M. Snh. 33ᵃ (expl. שיקול הדעת, v. דַּעַת) כגון תרי ת׳ וכ׳ when two Tannaim or two Amoraim differ in their opinions, and it has never been decided which is to be adopted in practice. Ib. 63ᵃ, a. fr. כת׳ it depends on Tannaim, i.e. Tannaim differ on that point. Ber. 9ᵃ והני ת׳ כהני ת׳ and those teachers differ on the same principle as these do. Ib. 49ᵃ ואת שבקת כל הני ת׳ ואמוראי וכ׳ and you ignore all these Tannaim and Amoraim, and act according to Rab’s opinion?; a. v. fr.—V. תַּנַּאי.