kickback

• POS: Noun, Verb (usu participle)
• HYPHEN: kick=back

CIDE DICTIONARY

kickback, n. 

•  recoil, of a gun or machine, as in older automobile engines when started by turning a crank.  [PJC]
•  A secret, and usually illegal, payment, by a recipient of money paid for goods or services, to a facilitator of the transaction, of a portion of that money;  [PJC]

OXFORD DICTIONARY

kickback, n. colloq.
1 the force of a recoil.
2 payment for collaboration, esp. collaboration for profit.

THESAURUS

kickback

abatement, agio, allowance, backfire, backlash, backlashing, bank discount, boomerang, bounce, bound, breakage, bribe, carom, cash discount, chain discount, charge-off, commission, compensation, concession, contrecoup, cut, deduction, depreciation, discount, drawback, kick, payola, penalty, penalty clause, percentage, premium, price reduction, price-cut, rebate, rebatement, rebound, rebuff, recalcitration, recoil, recoupment, reduction, refund, refundment, reimbursement, repayment, repercussion, repulse, resilience, restitution, return, reward, ricochet, rollback, salvage, setoff, share, spring, tare, time discount, trade discount, tret, underselling, write-off