sentry duty sentry box • sentry-fashion · · · Info · Definitions · Synonyms · Characters · · sentry duty · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) the duty of serving as a sentry. Synonyms: guard duty, guard, sentry duty, sentry go. Example: "He was on guard that night." · · Noun Definition 1 Synonyms · · · guard duty · · Synonym 1 guard · · Synonym 2 sentry go · · Synonym 3 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079