Is, v. i.

verbintransitive

v. i. [A-S. & D. is, Ger. & Goth. ist, allied to Lat. est; Gr. ἐστί, Skr. asti, Pol. jest, from Skr. as; Lat. esse, to be.] The third person singular of the substantive verb, in the indicative mode, present tense. See BE.