fēng dǐng
to put a roof (on a building)
to cap the roof (finishing a building project)
fig. to put a ceiling (on spending, prize, ambition etc)
to top off
fig. to reach the highest point (of growth, profit, interest rates)
to stop growing (of plant bud or branch)
fēng dǐng yí shì
ceremony of capping the roof (to mark the completion of a building project)