boiler boiled egg • boiler alarm · · · Info · Definitions · Synonyms · Characters · · boiler · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) sealed vessel where water is converted to steam. Synonyms: steam boiler. · · Noun Definition 1 (noun) a metal pot for stewing or boiling; usually has a lid. Synonyms: kettle. · · Noun Definition 2 Synonyms · · · steam boiler · · Synonym 1 kettle · · Synonym 2 Characters · · b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072