Synonyms and related words :
Trinkgeld, balance, bonus system, bounty, bribe, buried treasure, compensation, consideration, decoration, discovery, dividend, donative, double time, extra, extra added attraction, extra dash, fee, filigree, filling, fillip, find, finding, flourish, foundling, frill, fringe benefit, gratuity, gravy, grease, hand-out, honorarium, incentive pay, inducement, lagniappe, largess, largesse, leftover, liberality, margin, ornament, overage, overmeasure, overplus, overrun, overset, overstock, oversupply, overtime pay, padding, palm oil, perk, perks, perquisite, perquisites, plus, pourboire, premium, remainder, remuneration, reward, salve, solatium, something extra, spare, sportula, stuffing, superaddition, surplus, surplusage, sweetener, tip, treasure trove, trimming, trouvaille, trove, twist, waifs, waifs and strays, windfall, windfall money, windfall profit, wrinkle,