How to say "surplus" in Japanese
Choosing the right word
- 余裕よゆうnounCovers a surplus in the sense of margin or leeway — spare time, money, or emotional composure. Best when the point is having room to spare rather than an excess to dispose of.
- 余剰よじょうnoun, prenominal modifierSurplus as a leftover remainder, often in formal, technical, or economic contexts such as production or capacity. It presents the surplus as what remains after needs are met.
- 過剰かじょうnoun, na-adjectiveSurplus in the sense of excess or overabundance — more than is desirable or appropriate. Choose this when the surplus is framed as a problem of having too much.
- 余分よぶんna-adjective, nounSurplus as something extra or excess left over, typically for everyday physical things. For abstract or formal economic surplus it is usually not the word you want.
- 黒字くろじnounSurplus only in the accounting sense: being in the black, with income exceeding expenditure, as in a company's accounts, a budget, or trade balance. Never used for surplus of things in general.
Use 余裕 for leeway or room (time, money, composure), 余剰 and 過剰 for technical excess (過剰 implying too much), 余分 for extras, and 黒字 specifically for a budgetary or trade surplus.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also
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