guard dog guard chamber • guard duty · · · Info · Definitions · Synonyms · Characters · · guard dog · · Text Common · · Latin · · Scripts 9 · · Length 3 · · Syllables Definitions · · · (noun) a dog trained to guard property. Synonyms: watchdog, guard dog. · · Noun Definition 1 Synonyms · · · watchdog · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 g latin small letter g U+0067 o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075