The Cretan dialect is spoken by the majority of the Cretan Greeks on the island of Crete, as well as by several thousands of Cretans who have settled in major Greek cities, notably in Athens. The dialect continues to be used by Cretans in the major centres of the Greek diaspora, mainly in the United States, Australia, and Germany.
In addition, the descendants of many Cretan Muslims who left the island during the 19th and early 20th century continue to use it today. In Turkey, they are called Cretan Turks. They constitute the majority of the overall population in Ayvalık and Cunda Island as a result of the population exchange between Greece and Turkey in 1923. There is another grouping of Cretan Muslims in the coastal town of al-Hamidiyah, Syria, and in the neighbouring territories of Lebanon; some of these Cretan-speaking families moved to Crete as refugees from the Syrian Civil War.
Standard Greek has an allophonic alternation between velar consonants ([k], [ɡ], [x], [ɣ]) and palatalised counterparts ([c], [ɟ], [ç], [ʝ]) before front vowels (/i/, /e/). In southern dialects, the palatalisation goes further towards affricates; for example, [tɕe] is used instead of standard [ce] 'and'). Subtypes can be distinguished that have either palato-alveolar ([tʃ], [dʒ], [ʃ], [ʒ]) or alveolo-palatal sounds ([tɕ], [dʑ], [ɕ], [ʑ]). The former are reported for Cyprus, the latter for Crete and elsewhere.
In Standard Greek, the interrogative pronoun 'what?' is ti. In most of the Aegean Islands except at its geographical fringe (Rhodes in the southeast; Lemnos, Thasos and the Sporades in the north and Andros in the west), it is inda, like in Cypriot Greek.
Today the Cretan dialect is rarely used in writing. However, Cretan Greeks normally communicate with each other in speech using this dialect. Cretan does not differ greatly from other Greek dialects or from Standard Greek, leading to a fairly high level of mutual intelligibility. Many organizations of Cretans aim to preserve their culture, including their dialect, and the dialect does not seem to be in danger of extinction. Some academics speculate that Cretan could have become the basis of Modern Standard Greek, given its flourishing history and achievements. According to them, this process was interrupted by the Ottoman conquest in 1669.
Like all other modern Greek dialects except Tsakonian and, to some extent, Griko, Cretan evolved from Koine. Its structure and vocabulary have preserved some features that distinguish it from standard Greek, owing to the distance of Crete from other main Greek centres.
Cretan Greek also shows influences from other languages. The conquest of Crete by the Andalusian Moors in 824 left behind mainly toponyms. However, Venetian influence proved to be stronger since the island remained under Venetian control for nearly five centuries. To this day, many toponyms, names, and other local words stem from the Venetian language of early modern times, which came to reinforce the Latin influence from antiquity and the early Byzantine Empire. Following the Ottoman conquest of 1669, Turkish words entered the vocabulary of Cretans as well. Borrowings, as usual, are mainly lexical; Arabic, Turkish, and Venetian had little or no effect on grammar and syntax. With the beginning of the 20th century and the evolution of technology and tourism, English, French, and German terms are widely used.
Medieval works suggest that Modern Greek started shaping as early as the 10th century, with one of the first works being the epic poem of Digenis Acritas. However, the first literary activity which was important enough to be identified as "modern Greek literature" was done in the Cretan dialect during the 16th century.
Erotokritos is undoubtedly the masterpiece of the Cretan literature, and a supreme achievement of modern Greek literature. It is a romantic work written around 1600 by Vitsentzos Kornaros (1553–1613). In over 10,000 lines of rhyming fifteen-syllable couplets, the poet relates the trials and tribulations suffered by two young lovers, Erotokritos and Aretousa, daughter of Heracles, King of Athens. It was a tale that enjoyed enormous popularity among its Greek readership.
The poets of the period of Cretan literature (15th-17th centuries) used the spoken Cretan dialect. The tendency to purge the language of foreign elements was above all represented by Chortatsis, Kornaros and the anonymous poets of Voskopoula and the Sacrifice of Abraham, whose works highlight the expressive power of the dialect. As dictated by the pseudo-Aristotelian theory of decorum, the heroes of the works use a vocabulary analogous to their social and educational background. It was thanks to this convention that the Cretan comedies were written in a language that was an amalgam of Italicisms, Latinisms and the local dialect, thereby approximating to the actual language of the middle class of the Cretan towns. The time span separating Antonios Achelis, author of the Siege of Malta (1570), and Chortatsis and Kornaros is too short to allow for the formation, from scratch, of the Cretan dialect we see in the texts of the latter two. The only explanation, therefore, is that the poets at the end of the sixteenth century were consciously employing a particular linguistic preference – they were aiming at a pure style of language for their literature and, via that language, a separate identity for the Greek literary production of their homeland.
The flourishing Cretan school was all but terminated by the Turkish capture of the island in the 17th century. The ballads of the klephts, however, survive from the 18th century; these are the songs of the Greek mountain fighters who carried on guerrilla warfare against the Turks.
Many Greek authors have integrated Cretan literary elements in their respective works. Among these authors were Nikos Kazantzakis who was known for his literary contributions mainly written in standard Greek. This paradigm, overall, has helped Kazantzakis to write significant works such as Zorba the Greek and thus establish for himself recognition in various international circles. His Captain Michalis – set in 19th-century Crete – is notable for using many Cretan Greek words and idioms, the book's popularity making them widely known to other Greeks.