rear guard rear end • rear lamp · · · Info · Definitions · Characters · · rear guard · · Text Common · · Latin · · Scripts 10 · · Length 4 · · Syllables Definitions · · · (noun) a detachment assigned to protect the rear of a (retreating) military body. Synonyms: rearguard. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 r latin small letter r U+0072 u latin small letter u U+0075