subjoin From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA subordinate or secondary join.verbTo add something to the end; to append or annex Related wordsSynonymsunderjoinsubjunctionsupplementationaddsubjoynaffixappendsuffixsubjoyneadjectannexaddendplusaccompanysuperaddadd on References Wiktionary — subjoin Wikipedia — subjoin