Nouns

(n)plastera mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings
(n)plaster of Paris, plasterany of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs
(n)poultice, cataplasm, plastera medical dressing consisting of a soft heated mass of meal or clay that is spread on a cloth and applied to the skin to treat inflamed areas or improve circulation etc.
(n)plaster, plasterworka surface of hardened plaster (as on a wall or ceiling)“there were cracks in the plaster”
(n)plaster, adhesive plaster, sticking plasteradhesive tape used in dressing wounds

Verbs

(v)plaster, plaster over, stick onapply a heavy coat to
(v)plaster, beplastercover conspicuously or thickly, as by pasting something on“The demonstrators plastered the hallways with posters”, “She let the walls of the apartment be beplastered with stucco”
(v)plasteraffix conspicuously“She plastered warnings all over the wall”
(v)plasterapply a plaster cast to“plaster the broken arm”
(v)plaster, daubcoat with plaster“daub the wall”
(v)poultice, plasterdress by covering with a therapeutic substance