Catalan shortens words in conversation and builds institutional and technical names from initials, just as English does. The difficulty is not recognizing foto, ONU, or làser; it is making the shortened item behave as a Catalan noun. Gender usually comes from the full expression, the article reflects both gender and pronunciation, and plural spelling depends on whether speakers still perceive a sequence of initials or an ordinary word.
This page uses truncament for the process that creates a shortened lexical word, sigla for a name built from initials, and acrònim for a sigla that is pronounced as a word. Terminology varies slightly among reference works, but the practical distinction is stable: DNI is normally read letter by letter, while ONU and Unesco can be read as words.
Clippings keep the grammar of their source
Most common clippings inherit the gender of the full noun. La foto is feminine because it shortens la fotografia; la moto comes from la motocicleta; la tele from la televisió; la bici from la bicicleta. The final -o of foto and moto does not make them masculine. That is a particularly important contrast with the rough gender cues learners may know from Spanish.
M'envies la foto que vam fer davant del teatre?
Will you send me the photo we took in front of the theatre?
La moto nova gasta molt menys que l'antiga.
The new motorbike uses much less fuel than the old one.
Avui fan el documental a la tele, just després del telenotícies.
They're showing the documentary on TV today, just after the news.
Other truncated forms are strongly (informal) and may be restricted to particular social settings: la uni for la universitat, el/la profe for el professor / la professora, and la disco for la discoteca. In formal prose, use the full form unless the short form has become the normal name of the object or activity. Foto is neutral in almost every context; uni is not.
La profe ens ha penjat les notes al campus virtual.
The teacher has posted our marks on the virtual campus. (informal)
Ens veiem a la uni quan acabis la classe?
Shall we meet at university when you finish class? (informal)
Truncated words normally take the ordinary Catalan plural: fotos, motos, bicis, profes. Their stress and spelling belong to the shortened word itself: auto, from automòbil, is stressed on its first syllable but needs no written accent because it is a paroxytone ending in a vowel. Shortening may therefore shift stress rather than preserve the stress of the full form mechanically. The process is productive, but its output remains lexical: speakers say foto, yet one cannot arbitrarily cut every long noun after two syllables and expect an idiomatic result.
Gender and articles with sigles
A sigla normally inherits the gender and number of the head noun in its expanded name. La UE is feminine because it stands for la Unió Europea; l'ONU is feminine because the head is organització; el DNI is masculine because it is a document; el PIB is masculine because it is a producte. English has no comparable agreement requirement because its definite article is invariant; the full article system is covered under definite article forms.
| Short form | Expanded form | Normal use |
|---|---|---|
| la UE | la Unió Europea | feminine, singular |
| l'ONU | l'Organització de les Nacions Unides | feminine; apostrophe before the vowel sound |
| el DNI | el document nacional d'identitat | masculine |
| el PIB | el producte interior brut | masculine |
| els EUA | els Estats Units d'Amèrica | plural |
La UE ha publicat una nova directiva sobre residus electrònics.
The EU has published a new directive on electronic waste.
M'he deixat el DNI a casa i no em deixen recollir el paquet.
I've left my ID card at home and they won't let me collect the parcel.
L'ONU ha convocat una reunió extraordinària per demà.
The UN has called an extraordinary meeting for tomorrow.
The choice between el/la and l' follows the form as it is actually pronounced. This can require knowing whether a group is read as a word or letter by letter. There is no dependable visual shortcut for every new sigla. Established pronunciation and the gender of the expanded expression must be learned together.
Initialism, acronym, and ordinary word
An initialism is articulated letter by letter: DNI is commonly de-ena-i. An acronym is pronounced as a word: ONU is pronounced as a sequence of syllables. Some names vary by professional community, and very new digital abbreviations may be read partly in English. Such variation is real, but formal writing should follow the pronunciation used by the relevant Catalan-speaking institution or professional field.
Once an acronym is fully lexicalized, it may lose its capitals and inflect like any other noun. Radar, làser, ovni and sida are ordinary lowercase words in contemporary Catalan. Their accents follow Catalan spelling, not the typography of the original expression.
L'hospital ha comprat dos làsers nous per al servei de dermatologia.
The hospital has bought two new lasers for the dermatology department.
El radar ha detectat tres vehicles que circulaven massa de pressa.
The radar detected three vehicles travelling too fast.
La novel·la comença quan apareix un ovni damunt del poble.
The novel begins when a UFO appears over the village.
Plurals and capitalization
For countable uppercase sigles, current standard Catalan accepts two written plurals: the traditional invariant form (les ONG, els CAP) and a lowercase -s attached directly (les ONGs, els CAPs). The invariant option avoids mixed case and remains the traditional recommendation; the marked option can make number clearer. An apostrophe or a capital plural ending is not used. Lexicalized lowercase acronyms take the regular Catalan plural: radars, làsers, ovnis. A doubled initial can mark plural in a few conventional forms, notably CCOO for Comissions Obreres; that is a fixed convention, not a general rule learners should extend.
Les ONG del barri han coordinat la recollida d'aliments.
The neighbourhood NGOs have coordinated the food collection.
Adjunta els PDF al missatge abans d'enviar-lo.
Attach the PDFs to the message before sending it.
Les ONGs petites també poden presentar-se a la convocatòria.
Small NGOs can also apply to the call. — The attached lowercase plural s is an accepted alternative.
Capitalization also separates a proper institutional name from a lexicalized common noun. A newly created internal project code may stay in capitals, while a term such as làser no longer advertises its origin. Do not imitate English full stops between initials: modern Catalan sigles are written without them.
New digital vocabulary
Digital discourse creates short forms quickly: app, DM, QR, PDF and platform-specific names circulate before usage settles. Some are unadapted loans as well as shortenings. In neutral or formal Catalan, prefer an established Catalan expansion where it communicates more clearly: aplicació for app, missatge directe for DM, and codi QR rather than treating QR as a free-standing noun in every sentence. The short form is useful after the expansion has been introduced.
Escaneja el codi QR i obre l'aplicació quan s'hagi acabat la descàrrega.
Scan the QR code and open the app when the download has finished.
T'he enviat un missatge directe amb l'adreça; no la publiquis al grup.
I've sent you a direct message with the address; don't post it in the group.
In a report, introduce an unfamiliar sigla once: sistema de gestió de continguts (SGC). After that, el SGC is enough. This mirrors good English editorial practice, but Catalan still requires the correct article and agreement.
A realistic editorial exchange
—Al titular hi poso «les ONG's»? —No: escriu «les ONG» o «les ONGs», però mai no hi posis apòstrof.
—Should I put ‘les ONG's’ in the headline? —No: write ‘les ONG’ or ‘les ONGs’, but never use an apostrophe.
The editor recognizes two accepted Catalan options while rejecting an English-style apostrophe. An individual publication should choose a convention and apply it consistently. If the word is lexicalized—dos radars nous—the ordinary plural is required.
Common Mistakes
❌ El foto nou ha quedat molt fosc.
Incorrect: foto inherits the feminine gender of fotografia, and the adjective must agree.
✅ La foto nova ha quedat molt fosca.
The new photo has come out very dark.
❌ Les ONG's han presentat l'informe.
Incorrect: Catalan never separates the plural marker of an initialism with an apostrophe.
✅ Les ONG han presentat l'informe.
The NGOs have presented the report.
❌ Han instal·lat dos làser a la clínica.
Incorrect: a lexicalized lowercase acronym takes the ordinary Catalan plural.
✅ Han instal·lat dos làsers a la clínica.
They have installed two lasers at the clinic.
❌ ONU ha aprovat la resolució.
Incorrect: a countable institutional name normally needs its article, here elided before the vowel.
✅ L'ONU ha aprovat la resolució.
The UN has approved the resolution.
Key Takeaways
- Clippings usually keep the gender of the full word: la foto, la moto, la tele, la bici.
- A sigla gets gender and number from the head of its expanded expression: la UE, el DNI, els EUA.
- Countable uppercase initialisms allow invariant les ONG and marked les ONGs; never write an apostrophe before the lowercase plural s. Lexicalized lowercase acronyms inflect normally: làsers, radars, ovnis.
- Pronunciation determines whether a form behaves as a letter sequence or a spoken word and also affects article elision.
- New shortenings are conventional. A mechanically possible clipping or acronym is not automatically idiomatic Catalan.
Related Topics
- Compound WordsB1 — Understand Catalan verb–noun, noun–noun, adjective, and learned compounds through their heads, spelling, linking vowels, agreement, and plurals.
- Conversion between Word ClassesB1 — Recognize when Catalan infinitives, adjectives, participles, and unchanged stems function as nouns or adverbs, and what grammar changes with the category.
- Integrating LoanwordsB1 — How Catalan adapts or quotes borrowed words, assigning spelling, pronunciation, gender, plural forms, and typographic treatment.
- Creating and Evaluating NeologismsC1 — How Catalan creates and assesses new words through productive morphology, transparent meaning, terminology work, and evidence of real use.
- Definite Articles: el, la, els, lesA1 — Choose and place Catalan definite articles by gender and number, with Central pronunciation and the main regional paradigms.