JMdict: 1565620

さぞ 【さぞ】

  1. [adv] surely; certainly; no doubt; must
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Words often seen with this one: (experimental feature)

こと (56), この (15), それ (12), なる (12), その (11),  (10), 大変 (10),  (10), いい (10), それは (10), お喜び (10)