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Language Drops
languagedrops.com › word › en › english › italian › translate › nineteen
What is "Nineteen" in Italian and how to say it?
Learn the word for "Nineteen" and other related vocabulary in Italian so that you can talk about Numbers 11 to 20 with confidence.
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Busuu
busuu.com › en › italian › numbers
Italian Numbers 1 to 100: Learn How to Count - Busuu
While it sounds like the English word “say”, you can draw out the ending into a longer ee sound to make it SEY-ee. Wondering about 0? Zero is spelled the same as English but is pronounced dsee-roh. You’ve got the first ten numbers down! Here’s a good rule of thumb for numbers 11-20: 11-16, add dici after the root number. Tre + dici = tredici (13) 17-19, add the root number after dici.
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Cambridge Dictionary
dictionary.cambridge.org › dictionary › english-italian › nineteen
NINETEEN in Italian - Cambridge Dictionary
Log in / Sign up · English (UK) number · uk · Your browser doesn't support HTML5 audio · /ˌnaɪnˈtiːn/ us · Your browser doesn't support HTML5 audio · /ˌnɑɪnˈtin/ Add to word list Add to word list · A1 · the number 19 · diciannove · (Translation of nineteen from the Cambridge English-Italian Dictionary © Cambridge University Press) nineteen ·
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Memrise
memrise.com › learn italian › italian course › italian phrasebook › nineteen; 19
How to say nineteen; 19 in Italian - Memrise.
Learn how to say nineteen; 19 in Italian, how to say it in real life and how you can use Memrise to learn other real Italian phrases.
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Omniglot
omniglot.com › language › numbers › italian.htm
Numbers in Italian
Details of how to count in Italian with cardinal and ordinal numbers.
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Lawless Italian
lawlessitalian.com › lawless italian › vocabulary lists
Italian Numbers - Counting in Italian - Lawless Italian Numbers
3 weeks ago - For 11-16, dici follows the single digit, while for 17-19, it precedes it. ... Venti and trenta lose their final vowel when followed by numbers that begin with a vowel (uno and otto).
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WordHippo
wordhippo.com › what-is › the › italian-word-for-nineteen.html
How to say nineteen in Italian
Italian words for nineteen include diciannove and diciannovenne. Find more Italian words at wordhippo.com!
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Woodward Italian
woodwarditalian.com › home › numbers › numbers from 1 to 100 in italian
Numbers from 1 to 100 in Italian | Woodward Italian
February 13, 2024 - 19 – diciannove · 20 – venti · To write the numbers from 20 to 99 in Italian, you just add the single number (units) to the tens number. venti (20) + due (2) = ventidue (22) trenta (30) + sette (7) = trentasette (37) quaranta (40) + nove (9) = quarantanove (49) EXCEPTION: when you add the number 1 or 8 to the end.
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The Italian Experiment
theitalianexperiment.com › learn-italian › numbers
Numbers in Italian - Free Online Italian Lessons
If you squint, Italian numbers almost bear a resemblance to English numbers. They're pretty easy to remember, and follow a simple and predictable pattern. ... There is a famous proverb that can help you remember some of these numbers. ... It's usually just shortened to "Non c'è due senza tre". Literally it means "There's no two without three, the four comes by itself", and is equivalent to the English assertion that good or bad things "always come in threes".
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Rosetta Stone
blog.rosettastone.com › home › italian › learn numbers in italian: counting from 1-100
Learn Numbers in Italian: Counting From 1-100 - Rosetta Stone
August 20, 2024 - Numbers from 17 to 19 are created with dici- + the root number. ... Do you know that the number diciassette (seventeen) is considered bad luck in Italy? So don’t organize something important on a Friday the 17th: It’s like Friday the 13th in the US.
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My Corner of Italy
mycornerofitaly.com › home › lesson 12 : italian numbers from 11 to 20
Italian NUMBERS from 11 to 20 - My Corner of Italy
November 20, 2023 - In this post I speak about Italian numbers from 11 to 20,<strong> i numeri da 11 a 20 [ee NOOH-meh-ree dah OOHN-dee-tchee ah VEHN-tee] in Italiano. If you want to know how to say other numbers you can read my post regarding Italian numbers from 1 to 10. Sooner or later I will write posts regarding other numbers in Italian, I promise.
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An interesting explanation is given in the article "L'etimologia: implicazioni cognitive ed evidenze testuali (a proposito di bonus, malus e del "vaso dell'artefice capace")" by the linguist Domenico Silvestri, published in Linguistica Zero, Rivista del Dottorato in Teoria delle lingue e del linguaggio dell'Università degli studi di Napoli "L'Orientale" and in the book Etimologia fra testi e culture (edited by Giulio Paulis e Immacolata Pinto from Università di Cagliari). According to the author the origin could be the diffusion of the quaternary numeral system. Being sixteen equal to four times four it assume a particular relevance as marking the start of a new sequence.

Here is an excerpt from this article. You can find the complete article here.

      Qui accennerò ad alcune ricognizioni pragmalinguistiche, nell'ambito del computo con le dita e sulle (fra le?) dita, tra mondo indoeuropeo e dintorni. Tutto dipende in effetti e in prima istanza dal computo manuale nelle sue manifestazioni più antiche (e più imprevedibili). In questa sede mi limiterò a qualche esempio partendo da dati linguistici più vicini: nella serie italiana dei numerali cardinali da 11 (undici) a 19 (diciannove) colpisce, dopo 16 (sedici), l'inversione dell'ordine reciproco di unità e diecina: abbiamo 17 (diciassette), 18 (diciotto), 19 (diciannove), mentre prima avevamo 11 (undici), 12 (dodici), 13 (tredici), 14 (quattordici), 15 (quindici), 16 (sedici). Alla fissità più che comprensibile della "rappresentazione grafica" per cifre non corrisponde in tutti i casi qui visti la configurazione sequenziale degli elementi linguistici. Il fenomeno, che non ha fondamento etimologico nella seriazione dei numerali cardinali latini, ricompare in francese (seize "16" vs dix-sept "17", dix-huit "18", dix-neuf "19") e in spagnolo (con un'anticipazione dell'inversione a quota "16" , che è dieciseis), mentre è del tutto assente in inglese e in tedesco e in altre lingue. Qual è la spiegazione? Propongo di cercarla in una circostanza di ordine generale, cioè la grande diffusione in moltissime lingue del mondo della numerazione a base "4", che è sempre – dove è possibile l’espressione della marca del numero – un plurale perché si riferisce al massimo del computo fatto con il pollice sulle dita o fra le dita. In latino, greco e sanscrito il numerale "8" è espresso pertanto alla forma duale (sc. "8" come doppio o, meglio, come coppia di "4", che è il numero massimo della prima seriazione di computo) e rappresenta pertanto un'antica parola per "quattro", che per una felice circostanza emerge pure in due tradizioni linguistiche non indeuropee (berbero okat "4", georgiano otxi "4" con normale metatesi della sequenza consonantica). Se “quattro” è così rilevante nella numerazione arcaica fatta sulle dita di una mano (non si dimentichi che il pollice non è dito contato ma dito contatore e se è aggiunto nel computo ecco “cinque” con l'enclisi conclusiva del –que come mostrano le forme latine, greche e anticoindiane!), non sorprenderà ora il fatto che "16" sia considerato un ulteriore massimo di una prima serie di computi (“4” volte "4"!), per cui nello spagnolo l'inversione marca il "completamento" una prima serie di computi, in italiano e in francese invece l'inizio di una seconda serie di computi. A riprova di quanto affermo faccio notare che in latino novem “9”, che ha una indubbia connessione etimologica con la nozione di "nuovo" (cfr. lat. novus, –a, –um), diventa a questo punto eloquente testimonianza del fatto che dopo il computo di una doppia quartina (lat. octō è un duale!) si conti di nuovo (novem appunto).

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I found a similar question, where this is suggested by user CapnPrep as a possible answer:

Octodecim and novendecim/novemdecim do exist, although they are not the preferred forms in Classical Latin. I think the explanation is the same as why one might prefer to say "ten to six, quarter to six" instead of "five fifty, three quarters after five". Or if you're 19 years old,you might prefer to say "I'm almost 20" instead of "I'm in my teens". When you get close to the next round number, it is natural to use it as the new reference point, in anticipation.

My only addition to his answer, since in Latin this happens only with 18, 19 numbers, is that it can be related to the age of maturation, the age when a young man was enrolled in the army. In the days before Augustus this was 16 years, but after his rule the age of enrollment was increased to 18. So maybe this way of mentioning 18 as "20 without 2" was some sort of suggestion "that you are mature enough now", "you are considered a man" etc.

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Online Italian Club
onlineitalianclub.com › free-italian-exercises-and-resources › italian-grammar › numeri
Numeri
Numbers in italian do not change whether the object is masculine or feminine, the only exception is 1 (uno) because it is also the singular form of the indefinite article. 1 = uno/a 2 = due 3 = tre 4 = quattro 5 = cinque 6 = sei 7 = sette 8 = otto 9 = nove 10 = dieci 11 = undici 12 = dodici 13 = tredici 14 = quattordici 15 = quindici 16 = sedici 17 = diciassette 18 = diciotto 19 = diciannove
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Babbel
babbel.com › en › magazine › counting-italian
How To Count To 100 In Italian
September 2, 2022 - Counting in Italian is an important skill to master when learning the language. Here’s a breakdown of how the numbers work.
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Surface Languages
surfacelanguages.com › language › Italian › reviewwords › Numbers--11-to-20.html
Italian numbers. Eleven to twenty
Test yourself on the Italian Numbers 1 to 10 and Numbers 1 to 20. Numbers. 11 to 20, Numbers. 30 to 1000. A few first words. 1, A few first words. 2, Bedroom items, Buying things. General phrases. 2, Buyings things. Useful words, Clothing, Countries, Communication problems, Conversation. Introductions...
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Lingopolo
lingopolo.org › italian › word › nineteen
"nineteen (19)" in Italian
The Italian translation for “nineteen (19)” is diciannove.
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Joy of Languages
italian.joyoflanguages.com › podcast › how-to-count-20-italian
How to count from 1 to 20 in Italian | Joy of Languages
Invites to free speaking workshops. If you'd like to join us, click here to become a 5 Minute Italian member. Remember what you learnt with the bonus materials for today's episode. 1 = uno 2 = due 3 = tre 4 = quattro 5 = cinque 6 = sei 7 = sette 8 = otto 9 = nove 10 = dieci 11 = undici 12 = dodici 13 = tredici 14 = quattordici 15 = quindici 16 = sedici 17 = diciassette 18 = diciotto 19 = diciannove 20 = venti
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Dummies
dummies.com › article › academics-the-arts › language-language-arts › learning-languages › italian › how-to-count-in-italian-195677
How to Count in Italian | dummies
June 30, 2025 - In Italian, as in English, there is a unique number from 0 – 16. After that they add the next number to the tens, making one word.