Lump-sum definition
A single sum of money that serves as complete payment.
noun
A relatively large single payment of money often paid and received instead of, or in addition to, a sequence of smaller payments.
"When he retired, he received a lump sum plus a pension."
noun
A gross, or total, sum paid at one time.
noun
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Other Word Forms
Noun
Singular:
lump-sum
Plural:
lump sums