容積|ようせきyouseki[1]atamadaka (head-high)

1. nouncapacity; volume
   近ちかい将来しょうらい、ゴミ処理しょり費用ひようが容積ようせき基準きじゅんで有料化ゆうりょうかされる可能性かのうせいが高たかい。↗

   We will soon most likely be charged for garbage disposal by how much of it there is.

• Synonym容量ようりょうNeutralThe amount a thing can hold; far broader in use than 「容積」 — also covers capacitance and file sizes.
• Synonym体積たいせきWrittenThe space an object itself occupies; a maths and physics term with a written-prose feel. 「容積」 instead stresses what a container holds.
• Synonym嵩かさNeutralBulk — how much space or substance something takes up; mostly seen in phrases like 「嵩張る」 and 「嵩が増す」.
• SynonymキャパシティNeutralLoanword for how many people or how much a venue can take in, or an upper limit of ability; not limited to volume, as in a venue's 「キャパシティ」.
• SynonymキャパCasualColloquial short form of 「キャパシティ」; also used for a person's own upper limit of ability.
• Related収容能力しゅうようのうりょくWrittenHow many people or things a facility such as a stadium or hospital can accommodate; formal, mainly in written prose.
• Related収容力しゅうようりょくWrittenThe ability to take in people or things; close to 「収容能力」 but shorter.

Use 「容積」 for the volume inside a container. For data, battery or disk amounts pick 「容量」; for the space an object occupies, 「体積」. For how many people a venue holds, 「キャパシティ」 or colloquial 「キャパ」; formal prose prefers 「収容能力」/「収容力」.

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

1. 器うつわの中なかに収おさめられる分量ぶんりょう。