noun
remaining strength; reserve power; surplus energy
Refers to physical, mental, or organizational capacity left after some effort or task. Often used in contexts like 余力がある (have reserves) or 余力を残す (conserve strength).
まだ余力があるので、もう少し走れます。
I still have some reserve strength, so I can run a bit more.
試験勉強に余力を残さず全力を尽くした。
I gave it my all for exam prep without conserving any energy.
noun
money to spare; financial leeway
Used when one has extra funds beyond what is needed. Common in expressions like 余力があれば (if there is money to spare).
今月は余力がないので、外食は控えよう。
I have no money to spare this month, so let's cut back on eating out.