recognition and guarantee, by the shogunate, of ownership of the inherited estate of a samurai who pledged allegiance to it (in the Kamakura and early Muromachi periods)
Examples (3 in total)
こぞって安堵の吐息をついた。
We all breathed a sigh of relief.
彼女の無事を知らされて、彼は安堵のため息をついた。
Informed of her safety, he breathed a sigh of relief.