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burgeon [burgeoned, burgeoning, burgeons]▼(to grow or expand)
verb
[UK: ˈbɜː.dʒən] [US: ˈbɝː.dʒən]

thrive [throve, thriven, thriving, thrives]▼(to increase in bulk or stature)
verb
[UK: θraɪv] [US: ˈθraɪv]