“A retention bond is money withheld (usually from the first payment) from a contractor or sub for work already completed. The retained amount is paid in full when all work called for in the contract is completed (usually the final payment).”
(http://knowledge.fhwa.dot.gov/cops/dbex.nsf/0/E628164DDF918A...


“H M TREASURY - No. 48 Bonds and guarantees
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The traditional retention system is to withhold a percentage from payments made during the course of the contract to accumulate a fund that is available to the client if the contractor fails to rectify defects in accordance with the contract
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8. RETENTION BONDS
8.1 These bonds are still rare in the UK but their use is likely to increase. They are provided so that contractors (and their subcontractors) may be paid without the client deducting retention money. As work is completed, the contractor is paid fully under the terms of the contract. Normal practice is to provide conditional retention bonds issued by a surety company that increase in value as payments are made in accordance with the contract. The client is protected against default at the end of the defects liability or guaranteed maintenance period up to the amount of the bond.
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Retention bonds give contractors better and more certain cash flow through full payment at all stages (without the deduction of retention money).”
(http://www.ogc.gov.uk/sdtoolkit/reference/ogc_library/procur...


retention money > That part of the price payable under a contract which is held back for an agreed period; the buyer is thus indemnified against unsatisfactory execution of the contract.
(http://www.websters-online-dictionary.org/definition/retenti...


retention money > garantni depozit
(http://www.krstarica.com/recnik/index.php?u=retention)


“IDA d.o.o. Istarska razvojna agencija
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garancijski depozit, koji dodatno slabi kamatu, ali banci daje mogućnost da se iz njega namiruje, ukoliko poduzetnik ne vraća kredit. “
(http://www.ida.hr/konzorcij za jamstvo/konzjamst.html)