bound form(n = noun.communication) bound morpheme - a morpheme that occurs only as part of a larger construction; eg an -s at the end of plural nouns;
is a kind of morpheme
has particulars: combining form, affix

application form, art form, bound, bound morpheme, bound off, bound up, change form, citation form, claim form, combining form, doubly transitive verb form, form, form class, form division, form family, form genus, form genus rhizoctinia, form letter, form of address, form of government, free form, good form, homeward bound, imperative form, intransitive verb form, leaf form, life form, lower bound, major form class, muscle bound, order form, plural form, re form, requisition form, singular form, sixth form, sonata form, take form, tax form, telegraph form, transitive verb form, true to form, upper bound, verse form, wave form, word form