[don] (pref) (1) very; totally; (2) (See 殿・どの) polite suffix used after a person's name (often of an apprentice; used much more broadly in southern Kyushu); (n, adv-to) (3) bang (e.g. of large drum, signal pistol, etc.); with a thud; sound when slamming something down#10248
[ほころびる, hokorobiru] (v1, vi) (1) to come apart at the seams; to be ripped; to be torn; (2) (See 綻ぶ・ほころぶ・1) to begin to open; to begin to bloom; (3) (See 綻ぶ・ほころぶ・2) to smile broadly; to break into a smile; (P)