The term 'push along' can be defined by four different words: URGE (4 letters), IMPEL (5 letters), PROPEL (6 letters), and DRIVE (5 letters). URGE is an informal word meaning to strongly encourage someone to do something. IMPEL means to force or compel someone to do something. PROPEL means to push forward or DRIVE something forward. Finally, DRIVE means to URGE or force someone to do something. All of these words can be used to describe the act of pushing someone or something along.