v. sing, hum, or say in a low sentimental voice. n. such singing etc. n crooner n. [Low German or Dutch] crop sr. 1 a produce of cultivated plants, esp. cereals. b season’s yield. 2 group, yield, etc., of one time or place (a new crop of students). 3 handle of a whip. 4 a very short haircut. b cropping of hair. 5 pouch in a bird’s gullet where food is prepared for digestion. n (pp) 1 a cut off b bite off. 2 cut (hair etc.) short. 3 (foll. by with) sow or plant (land)