堆積 たいせき accumulation #21,280 Meanings noun, takes する, transitive, intransitive accumulation; pile; heap noun, takes する, intransitive, geology sedimentation Its kanji 堆 タイ、ツイ · うずたか.い piled high 積 セキ · つ.む、-づ.み、つ.もる、つ.もり volume, product (x*y), acreage, contents, pile up, stack, load, amass