singular form(n = noun.communication) singular - the form of a word that is used to denote a singleton;
is a kind of descriptor, form, signifier, word form

application form, art form, bound form, 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, imperative form, intransitive verb form, leaf form, life form, major form class, order form, plural form, re form, requisition form, singular, singular matrix, sixth form, sonata form, take form, tax form, telegraph form, transitive verb form, true to form, verse form, wave form, word form