How to say "stack" in Japanese

• 積むつむJLPT N2approx.Common
  godan verb, transitive verbCovers the verbal sense: to stack, to pile things up one on top of another. Choose it when 'stack' describes an action — piling or stacking objects up — rather than the pile itself.
  流ながしの横よこにお皿さらを積つんでおいてくだされば、後あとで私が洗あらいます。↗

  If you stack the dishes up by the sink, I'll do them later.
• 山盛りやまもりCommon
  no-adjectiveCovers the noun sense: a heap or pile mounded high, or a full heaped measure. It names the pile itself, not the action of stacking; typically a heaped serving of food.

Use the verb 「積む」 when 'stack' is an action — piling things up one on another — and the noun 「山盛り」 when it names the result: a mound-like heap or a full, heaped measure.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 積むつむto pile up
• 山盛りやまもりheap
• スタックstack
• 海食柱かいしょくちゅうstack
• 後入れ先出し記憶装置あといれさきだしきおくそうちpushdown storage
• 排気筒はいきとうchimney
• やまheap