What does "vowelizing" mean?

present participle and gerund of vowelize

Vowelizing

Common synonyms include: annotate vowels, insert vowels, phonetic restoration, restore vowels, vocalise, vocalize.

verb

verb ·Rare ·Advanced level

Verb

1
present participle and gerund of vowelize form-of, gerund, participle, present

"Vowelizing letters is one of the basics of writing in the Arabic language."