lump sum 
noun
A single payment made at a particular time, as opposed to a number of smaller payments or instalments: your pension plan can provide a cash lump sum at retirement as well as a regular income [as modifier]: a lump sum payment...
- When he dies, his wife is usually guaranteed a lump sum or payment of income for five years only.
- At the end of the term, a pre-agreed single lump sum payment is made by the borrower to clear the debt.
- It stated that the funds were to be used to secure the Retirement Benefits which were an annuity and a lump sum payment.
- multithreading
- multi-tier
- multi-tiered
- multi-tiering
- multi-timbral
- multi-ton
- multitone
- multitool
- multitouch
- multitrack
- multitracker
- multitribal
- multitrunked
- multituberculate
- multitubular
- multitude
- multitude of sins
- multitudinary
- multitudinous
- multitudinously
- multitudinousness
- multi-turn
- multi-use
- multi-user
- multi-user dungeon