堆 /duī/ meaning in English

cluster [clusters]▼(group or bunch)
noun
[UK: ˈklʌ.stə(r)] [US: ˈklʌ.stər]

heap [heaps]▼(pile)
noun
[UK: hiːp] [US: ˈhiːp]

mound [mounds]▼(artificial elevation of earth)
noun
[UK: maʊnd] [US: ˈmaʊnd]

pile [piles]▼(heap)
noun
[UK: paɪl] [US: ˈpaɪl]

stack [stacks]▼(a pile of identical objects)
noun
[UK: stæk] [US: ˈstæk]