What is the meaning of ?

a vowel of the Devanagari script

The third vowel in Dhivehi, written in Devanagari script

the third vowel in Hindi

The third vowel in Marathi.

The third vowel in Nepali.

base of the nominative and accusative singular dual and plural of the demonstrative pronoun इदम् (idam), ‘this’ or ‘that

Source: wiktionary.org