return gift; return favour (favor); revenge; change (in a cash transaction)
repetition; repeat; reiteration; repeatedly
payback; tit for tat; retaliation; doing over again; redoing
reflection; reflected light; reflected heat; glare
recovery; undoing; recall
by return; (call or write back) without delay; lapel; cuff; going back; returning; chorus
rally; recovery; comeback; winding (thread, etc.)
railway switchback; twisting backward knee trip
reflection; reflected light; reflected heat; glare
counterattack (kendo, judo, etc.); reversal technique
endpaper (of a book); end-paper; facing (material sewn on the inside edge of a garment); looking back; triumphing over (a rival)
muscle pain caused in reaction to excess massaging