Indefinite Articles: Italian Grammar Lesson

An interactive lesson guiding you from key takeaways to expert insights. Comes with Q&A, useful vocabulary, interactive audio, quizzes and games.

Un albero può crescere alto.
Un albero può crescere alto.
Un albero può crescere alto.
Published Apr 22, 2021
Updated Aug 2, 2025
Written by
Italian language tutor, course author. MEng, MBA. Member of the International Association of Hyperpolyglots (HYPIA). After learning 12 languages, I can tell you that we all master languages by listening and mimicking. I couldn’t find an app to recommend to my students, so I made my own one. With my method, you’ll be speaking Italian from Lesson 1.
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Key Takeaways

  • Indefinite articles in Italian are articoli indeterminativi and are used for general nouns or concepts.
  • There are four forms of indefinite articles: Uno, Un, Una, and Un’, depending on gender and number.
  • Masculine singular nouns use Uno before specific consonants and Un for others, including vowels.
  • Feminine singular nouns use Una for consonants and Un’ for vowels.
  • Indefinite articles are used to introduce new topics, refer to general categories, and describe professions.
  • Remember that un’ is exclusively for feminine nouns, a common mistake among learners.

Stefano's Insights

Play to see captions...
Ah, gli articoli indeterminativi italiani, quei piccoli ma potenti strumenti linguistici! Sapevi che possono far impazzire anche i madrelingua italiani? In effetti, la scelta tra 'uno', 'un', 'una' e 'un’' può sembrare un gioco di prestigio, ma una volta capito il trucco, diventa un gioco da ragazzi. Ricorda: 'uno' per maschili singolari con z, gn, ps, s+consonante, 'un' per tutti gli altri maschili, 'una' per femminili con consonante e 'un’' per femminili con vocale. E mi raccomando, non sbagliare 'un’', è solo per le parole femminili! Una volta, un mio studente ha usato 'un’' per 'un uomo' e abbiamo riso insieme per un bel po’. Ora, pratica e diventerai un maestro degli articoli indeterminativi!
Ah, Italian indefinite articles, those small yet mighty linguistic tools! Did you know they can even drive native Italian speakers crazy? Indeed, choosing between 'uno', 'un', 'una', and 'un’' might seem like a magic trick, but once you get the hang of it, it's a breeze. Remember: 'uno' for singular masculine with z, gn, ps, s+consonant, 'un' for all other masculine, 'una' for feminine with consonant, and 'un’' for feminine with vowel. And don't mess up 'un’', it's only for feminine words! Once, a student used 'un’' for 'un uomo' and we had a good laugh. Now, practice and you'll become a master of indefinite articles!

Quick facts

How do Italian indefinite articles indicate specificity in nouns?

They convey definiteness or indefiniteness, showing the noun's specificity.

What determines the form of Italian indefinite articles?

They change based on the noun's gender, number, and sometimes the initial letter.

When is "uno" used in Italian?

"Uno" is used for masculine singular nouns starting with z, gn, ps, or s+consonant.

How does "un" differ from "uno" in usage?

"Un" is used for masculine singular nouns beginning with vowels or other consonants.

When do you use "una" for feminine nouns?

"Una" is used for singular feminine nouns beginning with a consonant.

What is unique about "un’" in Italian indefinite articles?

"Un’" is exclusively for singular feminine nouns beginning with a vowel.

Can you give examples of "uno" in use?

Examples include "uno zaino" (a backpack) and "uno studente" (a student).

How do you introduce a new topic with indefinite articles?

Use them to introduce general or non-specific nouns, like in "Maria ha un gatto" (Maria has a cat).

When should indefinite articles be used with professions?

Use them with the verb "essere," such as in "Lei è una professoressa" (She is a professor).

What common mistake should be avoided with "un’"?

Remember "un’" is only for feminine words; many, including natives, mistake this.

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Main Article

Articles in Italian

Articles in linguistics are grammatical items that indicate definiteness or indefiniteness and are, therefore, used to convey a degree of specificity about nouns.

Italian articles agree in gender and number with the nouns they refer to and can be divided into two main groups: indefinite articles, which I will discuss here, and definite articles.

Indefinite Articles in Italian

Indefinite articles (articoli indeterminativi) introduce general nouns or concepts. They are the generic counterpart of definite articles and can be translated into English with “a”/”an”.

Just like definite articles, they change depending on the gender (masculine or feminine) and number (singular or plural) of the noun, and sometimes also depending on its first letter.

Here is an overview of how these articles are used in Italian:

  • Uno (used just for singular masculine nouns beginning with z, gn, ps, or s+consonant): uno zaino (a backpack).
  • Un (used for all other singular masculine nouns beginning with a vowel, and with the other consonants): un amico (a friend)

For singular and feminine nouns and adjectives we use:

  • Una(used for all singular feminine nouns beginning with a consonant): una matita (a pencil)
  • Un’ (used for all singular feminine nouns beginning with a vowel): un’amica (a female friend)

Italian Indefinite Articles Chart

Masculine Feminine
Singular Uno studente (student), uno specchio (mirror), uno zaino (backpack), uno psicologo (psychologist) Una borsa (bag), una casa (house), una studentessa (student), una psicologa (psychologist)
Un cameriere (waiter), un bicchiere(glass), un libro (book) Un’ ape (bee), un’ attrice (actress), un‘insegnante (female teacher)
Un amore (love), un insegnante (male teacher), un uomo (man)
Plural Dei camerieri (waiters), dei libri (books) Delle borse (bags), delle case (houses), delle studentesse (students)
Degli insegnanti (teachers), degli uomini (men), degli zaini (backpacks)

When to use Indefinite Articles?

Let me now show you the contexts where you should use indefinite articles:

  • To introduce a new topic not previously mentioned:

Maria ha un gatto.
Il suo gatto è bellissimo!

Maria has a cat.
Her cat is beautiful!

  • To introduce general or non-specific nouns:

Vuoi una fetta di torta?

Would you like a slice of cake?

  • To refer to groups, categories, or species:

Un leone mangia circa 14 chili di carne al giorno.

A lion eats about 14 kilos of meat per day.

  •  To talk about professions with the verb essere:

Lei è una professoressa.

She is a professor.

Notice that if you use the verb fare to talk about professions, you must use a definite article.

Lei fa la professoressa.

Important to Remember!

Indefinite articles in Italian are used to generalize about items, people, and topics and are similar to the English “a” and “an”. However, while English indefinite articles vary only depending on the noun spellings, Italian indefinite articles change depending on noun gender and number as well.

Something many people often get mistaken – Italian native speakers included – is the use of un’. Remember this claim and try not to make this mistake: un’ is used with feminine words only!

Now you have read everything you need to know about Italian indefinite articles. The next step is to practice!

Key Terms and Concepts

Articoli Indeterminativi

Indefinite articles in Italian. They introduce general nouns and can be translated as 'a' or 'an' in English. They agree in gender and number with the noun.

Uno

An indefinite article used for singular masculine nouns starting with z, gn, ps, or s+consonant. Example: uno zaino (a backpack).

Un

An indefinite article for singular masculine nouns not covered by uno, typically those starting with a vowel or a different consonant. Example: un amico (a friend).

Una

An indefinite article used for singular feminine nouns starting with a consonant. Example: una matita (a pencil).

Un’

An indefinite article for singular feminine nouns starting with a vowel. Example: un'amica (a female friend).

Plural Indefinite Articles

In the plural form, indefinite articles become dei for masculine and delle for feminine nouns. Example: dei camerieri (waiters).

Indefinite Article Use Cases

Used to introduce new topics, non-specific nouns, categories, or professions with essere. They generalize about items, similar to 'a' and 'an' in English.

Test your knowledge in 10 quick questions

Words

unoone
una (masculine singular)
unaa (feminine singular)
un’a (feminine singular before a vowel)
zainobackpack
gnomognome
psicologopsychologist
stadiostadium
sediachair
universitàuniversity

Phrases

uno studentea student
una biciclettaa bicycle
un amicoa friend
uno zainoa backpack
un'automobilea car
una casaa house
uno psicologoa psychologist
un libroa book
una sediaa chair
un'ideaan idea

Sentences

Ho visto uno studente fuori dalla scuola.

I saw a student outside the school.

C'è un libro interessante sul tavolo.

There is an interesting book on the table.

Anna ha comprato una mela rossa.

Anna bought a red apple.

Voglio un'idea brillante per il progetto.

I want a brilliant idea for the project.

Luigi è un insegnante di matematica.

Luigi is a math teacher.

Match the Phrases

Memory game

Flip the cards to find matching pairs!

Crossword

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Answers

FAQs

What are indefinite articles in Italian?

They refer to nouns more generally than definite articles and introduce a non-specific noun or concept. Are the respective a and an in English.

How to use indefinite articles?

They can only be used in singular form and follow both the gender of the noun and its first letters.

When to use indefinite articles?

For referring to something for the first time, for introducing general or non-specific nouns, and for referring to to groups, categories, or species.

How to conjugate singular and masculine indefinite articles?

By using "uno" with nouns beginning with z, gn, ps, or s+consonant and "un" with nouns beginning with a vowel, and with a consonant not included in uno's list.

How to conjugate singular and feminine indefinite articles?

By using "una" with nouns beginning with a consonant and "un'" with nouns beginning with a vowel.

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