How to say "bulk" in Japanese

• 嵩かさCommon
  nounCovers the physical sense of bulk: how much space something occupies or how bulky it is. Typical in contexts like shipping or storage, where an item is large in bulk though perhaps light in weight.
  民生用みんせいよう・産業さんぎょう用ようを含ふくめて、ゴミのかさをコンパクト化かする機器ききの今後こんごの市場しじょう成長性せいちょうせいが法制度ほうせいどの動向どうこうと関連かんれんして注目ちゅうもくされる。↗

  Attention is focussed on the potential for growth of the personal and industrial use garbage compactor market in relation to trends in law.
• ボリュームCommon
  nounCovers volume or a substantial amount, often of food, hair, or content. It suggests fullness or heft rather than mere space taken, and is the natural choice when talking about something being voluminous or filling.

Use 嵩 for physical bulk or volume that takes up space, and 「ボリューム」 for volume or substantial amount, especially of food, hair, or content.

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

• 嵩かさbulk
• バルクbulk
• ばら積みばらづみbulk
• 塊状かいじょうmassive
• ボリュームvolume