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to come apart at the seams; to be ripped; to be torn
to begin to open; to begin to bloom
to smile broadly; to break into a smile
古くなったコートの縫い目がほころびて綿が見えてきた。
The seams of the old coat came apart and the padding became visible.
春の訪れとともに庭の梅のつぼみがほころび始めた。
With the arrival of spring, the plum buds in the garden began to open.
紙袋の底がほころびていた。
The bottom of the paper bag had come apart.