Crossword solverSynonyms for sustain42 crossword answers for “sustain” (7), sorted by letter count.How many letters?All42314756697885941123 letters 1get4 letters 7holdhavekeepbackpolebuoyprop5 letters 6blockcarrycrackbraceprovechock6 letters 9back up(4,2)hold up(4,2)affirmkeep up(4,2)retainbuoy up(4,2)prop up(4,2)keep on(4,2)reseed7 letters 8break up(5,2)nurtureconfirmbracketcrack up(5,2)prolongnourishcrock up(5,2)8 letters 5continuedocumentcollapsemaintainscaffold9 letters 4break down(5,4)establishpatronagekeep going(4,5)11 letters 2demonstratecorroborate