Devanagari is typically an abugida augmented with dedicated letters for initial vowels, though some traditions use अ as a zero consonant as the graphic base for such vowels.
dˌeɪvənˈɑːɡɚɹi ɪz tˈɪpɪkli ɐn ɐbjˈuːdʒɪdə ɔːɡmˈɛntᵻd wɪð dˈɛdᵻkˌeɪɾᵻd lˈɛɾɚz fɔːɹ ɪnˈɪʃəl vˈaʊəlz, ðˌoʊ sˌʌm tɹɐdˈɪʃənz jˈuːs hˈɪndi(hi)ˈʌ(en-us) æz ɐ zˈiəɹoʊ kˈɑːnsənənt æz ðə ɡɹˈæfɪk bˈeɪs fɔːɹ sˈʌtʃ vˈaʊəlz.