boosting Play verbHelp or encourage (something) to increase or improve. SYNONYMS advanceaidamplifyarouseassistaugmentbackbeef upbolsterbuck upbump upbuttresscrank updevelopelevateencourageenhanceenlargeescalateexpandfacilitatefosterfurthergive a shot in the arm toheightenhelphikehike upimproveincreaseinflateinspireinvigoratejack upmagnifynurtureperk uppromotepush upraiserevitalizeshore upstep upstimulatestrengthensupportswelluplift