The term "Swaradi" (स्वरादि) refers to words that start with a vowel in Sanskrit and languages derived from it, like Hindi and Marathi.

In Sanskrit grammar, the classification of words based on their initial sound is important for various phonetic rules and euphonic combinations (sandhi). Swaradi words are treated differently than words starting with consonants (व्यंजनादि - Vyanjanadi) in these grammatical operations.

To be more clear:

• Swar (स्वर) means vowel.
• Adi (आदि) means beginning or starting.

Therefore, Swaradi literally means "beginning with a vowel."