בָּב, (reduplic. of בא, v. בּוֹא; cmp. b. h. בִּאָה a. מָבוֹא) entrance, door, gate. Targ. Esth. V, 14.—Sabb. 32ᵃ, v. חוּטְרָא a. בִּזְיוּנָא I. Ib. 156ᵇ קרי אכ׳ called at the door (begging). Erub. 11ᵇ; a. fr.—Pl. בָּבֵי. Ber. 58ᵇ; a. fr. Men. 34ᵃ בָּאבֵי.—Trnsf. (of writings) section, clause. ב׳ דרישא the clause of the first proposition. Sabb. 3ᵃ top; a. fr.—Hence ב׳ קמא (abbr. ב"ק), (ב"מ) ב׳ מציעא, (ב"ב) ב׳ בתרא Baba Kamma, Baba Metsia, Baba Bathra (first, middle, last section), names of three Talmudic treatises of the order of N’zikin (civil law); v. נֶזֶק. [Tosefta Kelim is likewise divided into three Babas with the same names.].—Pl. as above. R. Hash. 33ᵇ תקיעה דכולי ב׳ the tune T’kiah in all the three sections.