CRT spot DM display Doppler signal IF signal IM display RF echoes about-face acknowledge acknowledgment action and reaction advent advert afford alternate alternation amends answer answer back answering antiphon arrival atavism atonement automatic reaction autonomic reaction back answer back talk backchat backing backset backslide backsliding backward deviation backward motion backward step bandy be here again be quits with be reflected be sent back beam beat beat signal benefit blips blood money boom boomerang bounce back bounceback bounces bring back bring in capital gains carry back change circle cleanup clear profit cock come again come and go come around come back come back at come home come in come round come round again come up again comeback coming commute compensate compensation consideration convalescence cooperate counter counterblast counterblow counterchange counterstroke cycle cyclicalness damages deliver disenchantment display dividends double double back double-dot display doubling duplication earn earnings echo echo back echo signal evasive reply exchange extradite extradition fall astern fall behind falling back filthy lucre flash back flip-flop gain gains get get back at get behind get even with gettings give give acknowledgment give and take give answer give back give-and-take giving back gleanings go back go backwards go behind go home gross gross profit guerdon hoard homecoming honorarium imitation income indemnification indemnity interchange interest intermit intermittence intermittency jerk back keep coming kickback killing lapse lapse back local oscillator signal logroll lose ground lucre makings meed meter neat profit net net profit offer oscillate oscillation output signal paper profits pay pay back pay off payment pelf pendulum motion percentage periodicalness periodicity perk perks permute perquisite pickings picture pips piston motion place in plagiarism predictable response price proceeds proffer profit profits pull back pulsate pulsation pulse put back quittance quotation radar signal rake-off rally react reaction reactivate reading ready reply reappear reappearance rebirth rebound recede receipt receipts recession recidivate recidivation recidivism reciprocate reciprocation reciprocity reclamation recoil recommit recommitment recompense reconstitute reconversion reconvert recoupment recover recovery recrudescence recruit recuperation recur recurrence recursion reddition redoubling redress reduplication reecho reenact reentrance reentry reestablish refill reflect reflection reflex reflex action refluence reflux reform refund