The term THUMB can be broken down into seven crossword solutions: DIGIT (5 letters), FLIP (4 letters), HANDLE (6 letters), HITCHHIKE (9 letters), HITCH (5 letters), TOM (3 letters), and TACK (4 letters). The term 'thumb' is used to refer to the short, thick DIGIT on the hand that is used for gripping and manipulating objects. It is the first DIGIT of the hand, located closest to the wrist. The term 'DIGIT' is used to refer to any of the numbers from 0-9. To 'FLIP' something is to turn it over or toss it in the air. A 'HANDLE' is a part of an object used for grasping and carrying it. To 'HITCHHIKE' is to travel by asking strangers for rides in their vehicles. To 'HITCH' is to fasten or attach something. 'Tom' is a male given name. To 'TACK' is to fasten or attach something with tacks. To 'aride' is to ride in a vehicle.