The name Devanagari comes from the Sanskrit words Deva (god), and Nagari (city); together they mean, literally, the script of the "City of the Gods", where this city is the body of the individual. The philosophy behind it is that when one meditates on the specific sounds of the Devanagari alphabet, the written forms appear spontaneously in the mind. The compound really functions as a bahuvrihi. "Devanagari" is the most common transliteration of the name of script. Others are "Devnagri" and "Devanagri".

Devanagari is written from left to right. In Sanskrit, words were written together without spaces, so that the top bar is unbroken, although there were some exceptions to this rule. The break of the top line primarily marks breath groups. In modern languages, word breaks are used. Devanagari has no case distinction, i.e. no majuscule and minuscule letters.

Sanskrit spelling was phonetic but with historical changes, the spelling of modern languages written in Devanagari may only be partly phonetic in the sense that a word written in it can only be pronounced in one way, but not all possible pronunciations can be written perfectly. Devanagari has 34 consonants (vyanjana), and 12 vowels (svara). A syllable (akshara) is formed by the combination of zero or one consonants and one vowel.

The transliterations in the following tables follow the popular National Library at Calcutta romanization. The ITRANS notation is a lossless transliteration scheme of Devanagari into ASCII that is widely used on Usenet. In ITRANS, the word Devanagari is written as "devanaagarii".

Symbols of Devanagari

All the vowels in Devanagari are attached to the top or bottom of the consonant or to an AA vowel sign attached to the right of the consonant, with the exception of the I vowel sign, which is attached on the left. In the Devanagari vowel table below, the "Letter" column contains the symbol used when a vowel occurs without a consonant, the "Vowel sign" column contains the symbol used when a vowel is attached to a consonant, and the "Vowel with [p]" column show an example of the vowel symbol, attached to the "p" consonant. The "Unicode name" column contains the name given in the Unicode specification for the vowel, and the "IPA" column contains the International Phonetic Alphabet character(s) corresponding to the Hindi pronunciation of the Devanagari character.

When no vowel is written, 'a' is assumed. To specifically denote the absence of a vowel, a halant (also called virama) is used.

Among these, ळ is not used in Hindi. The entire set is used in Marathi.

Devanagari digits are written as follows:

Devanagari in Unicode: The Unicode range for Devanagari is U+0900 .. U+097F.