Lexical Number and Suppletive Sets

Most Persian nouns make an ordinary contrast between an unmarked singular and a plural in ـها or, in a more restricted human or formal domain, ـان. A smaller but important group does not fit that template neatly. مردم mardom “people” has no productive singular of the same lexeme; اطلاعات ettelâ'ât “information” has inherited plural shape but often behaves like a mass expression; and پلیس polis can name either an institution or, in suitable contexts, one officer. Their number is partly stored in the lexicon rather than computed from a suffix each time.

This is lexical number: the conventional meaning of the noun determines whether speakers conceptualize it as individuals, a body, a mass, or an event type. A suppletive set uses different lexical stems where English encourages learners to expect one regular paradigm. Persian does not thereby acquire English articles, grammatical gender, or adjective agreement. Reference remains active through context, یک, ـی, demonstratives, and را.

A map of the main patterns

The table lists lexical relations, not inflectional equations. خبر can mean one news item, while اخبار can mean several reports, the news as a whole, or a scheduled news bulletin. Likewise, singular اطلاع is usually “notice/knowledge” in particular constructions; it is not a universal count unit for every piece of اطلاعات.

Suppletion in the human domain

Modern Iranian Persian normally uses مردم for “people/the public” and selects another noun for one individual. Calling the relation suppletive is useful pedagogically, provided we do not pretend that آدم, فرد, شخص, and نفر are interchangeable. آدم is neutral and human, فرد is formal-neutral “individual,” شخص is more formal or legal, and نفر is chiefly a human counting unit.

The plural مردم‌ها is marked. It may contrast distinct peoples in conversational or theoretical contexts, but ordinary “people” does not require it. Careful prose usually chooses ملت‌ها “nations,” اقوام “ethnic peoples,” or another precise plural. See Collective and Unit Nouns for agreement with مردم and counted نفر.

Arabic relics reanalyzed inside Persian

Words such as اطلاعات, اخبار, and مراسم entered Persian in Arabic plural forms, but their present Persian syntax and meanings must be learned independently. They take Persian word order and Persian agreement; no Arabic gender or case rule survives around them.

اطلاعات commonly denotes an undifferentiated body of information. Speakers ask for اطلاعات بیشتر “more information,” not normally “an information.” اخبار can be a collective “news” or a countable set of reports. مراسم can denote one organized ceremony or a complex of observances, so a singular verb is entirely normal when one event is meant.

When genuinely separate kinds or occurrences are contrasted, Persian can add ـها even to an inherited plural-looking form, but style matters. مراسم‌ها and اطلاعات‌ها occur in specialized or colloquial categorization, yet careful prose usually says انواع مراسم “types of ceremonies” and مجموعه‌های اطلاعاتی “information sets.” This is a lexical and stylistic restriction, not a ban imposed by word shape. Broken Arabic Plurals explains productive Persian alternatives in more detail.

Institutional collectives

دولت, ارتش, and پلیس are grammatically singular when they name an institution as one actor. A plural verb becomes natural only when the wording foregrounds multiple human members, usually by naming مأموران, سربازان, or اعضای دولت. English variation such as “the police are” should not be copied mechanically.

In colloquial Tehran speech, پلیس can also mean one police officer: یه پلیس اومد “a cop came.” That count reading is (informal) and does not change the neutral institutional pattern in edited writing.

Dictionary citation and actual usage

Persian dictionaries normally head an entry under its conventional citation form, but that form does not promise a complete number paradigm. Look up مردم as مردم, not under a hypothetical singular; look up اطلاعات in its inherited shape; and check خبر and اخبار separately because their senses overlap imperfectly. For an institutional noun, inspect examples to learn whether the subject is construed as a body or as members.

This is one place where bilingual dictionary glosses mislead. English information may be marked “uncountable,” while اطلاعات visually resembles a plural. The useful question is not “Does it look plural?” but “What referential unit does this Persian sentence select?”

Common Mistakes

1. Manufacturing a singular of مردم

2. Copying English agreement with an institution

3. Overpluralizing a noun after a number

4. Importing articles, gender, or capitalization

Key Takeaways

• Lexical number belongs to the stored meaning of a noun; it need not match the visible shape of a suffix.
• مردم selects different singular/count words, while Arabic-shaped اطلاعات, اخبار, and مراسم have developed Persian collective and event readings.
• Institutions normally take singular agreement as unified actors; name their human members when plural agency matters.
• A dictionary headword is not a guarantee of a productive singular–plural pair. Learn each noun's counting strategy, agreement, and register together.