Crossword solverSynonyms for flat solid17 crossword answers for “flat solid” (4,5), sorted by letter count.How many letters?All17314156841031111713 letters 1bed4 letters 1film5 letters 6boardplatelayersheetpanelblank8 letters 4membraneartefactartifactlaminate10 letters 3plate glass(5,5)blackboardchalkboard11 letters 1plastic film(7,4)17 letters 1photographic plate(12,5)