▁not .” ▁ ▁Vietnam ese ▁ ▁Vietnam ese ▁is ▁an ▁isol ating ▁language , ▁which ▁naturally ▁limits ▁the ▁length ▁of ▁a ▁morph eme . ▁The ▁longest , ▁at ▁seven ▁letters , ▁is ▁, ▁which ▁means ▁" in cl ined " ▁or ▁" to ▁lean ". ▁This ▁is ▁the ▁longest ▁word ▁that ▁can ▁be ▁written ▁without ▁a ▁space . ▁However , ▁not ▁all ▁words ▁in ▁Vietnam ese ▁are ▁single ▁morph emes . ▁Indeed , ▁ ▁can ▁be ▁redu p licated ▁as ▁. ▁ ▁The ▁written ▁language ▁ab ounds ▁with ▁comp ound ▁words ▁in ▁which ▁each ▁constitu ent ▁word ▁is ▁del im ited ▁by ▁spaces , ▁just ▁like ▁any ▁fre est and ing ▁word . ▁Moreover , ▁the ▁grammar ▁la cks ▁inf lection ▁to ▁mark ▁parts ▁of ▁speech , ▁and ▁pre pos itions ▁are ▁often ▁optional . ▁Therefore , ▁the ▁boundary ▁between ▁a ▁word ▁and ▁a ▁phrase ▁is ▁poor ly ▁defined . ▁Ex amples ▁of ▁this ▁ambigu ity ▁include : ▁▁▁ ▁(" rac ism "), ▁which ▁is ▁composed ▁of ▁the ▁words ▁ ▁(" ide ology "), ▁ ▁(" dis c rim inate "), ▁and ▁ ▁(" race ") ▁ ▁, ▁which ▁literally ▁describes ▁a ▁d ish ▁of ▁gr illed ▁ch icken ▁sa ute ed ▁with ▁lem ong rass ▁and ▁pe ppers ▁on ▁rice ▁ ▁, ▁a ▁pol ite ▁pron oun ▁composed ▁of ▁five ▁kin ship ▁terms ▁ ▁Un like ▁locally ▁co ined ▁comp ound ▁words , ▁comp ound ▁words ▁in ▁S ino - V ietnam ese ▁voc ab ul ary ▁are ▁less ▁ambigu ous ,