Daira Da"["i]*ra, n. [Turk. daire circuit department, fr. Ar. da["i]rah circle.] Any of several valuable estates of the Egyptian khedive or his family. The most important are the Da"i*ra Sa"ni*eh, or Sa"ni*yeh, and the Da"i*ra Khas"sa, administered by the khedive's European bondholders, and known collectively as the Daira, or the Daira estates.