sweet·en 
/ˈswi:tn̩/ verb
sweet·ens; sweet·ened; sweet·en·ing /ˈswi:tn̩/ verb [+ obj] 1 : to make (something) sweet or sweeter in taste
▪ She sweetened her coffee. ▪ He sweetened his cereal a little. 2 : to make (something) more valuable or attractive
▪ He sweetened the deal with a large signing bonus.
▪ She sweetened her coffee. ▪ He sweetened his cereal a little.
▪ He sweetened the deal with a large signing bonus.
sweeten the pill — see 1pill
sweeten up [phrasal verb]
sweeten up (someone) or sweeten (someone) up informal : to be very nice to (someone) in order to get something
▪ He's been trying to sweeten his mother up so she'll lend him the car.
▪ He's been trying to sweeten his mother up so she'll lend him the car.
— sweet·en·er /ˈswi:tn̩ɚ/ noun, plural sweet·en·ers [count]
▪ She used an artificial sweetener in the pie instead of sugar.
/ˈswi:tn̩ɚ/ noun, plural sweet·en·ers [count] ▪ She used an artificial sweetener in the pie instead of sugar.
