This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. In Arabic and Hebrew - supplying the vowels (diacritics), normally not written to show the correct pronunciation, used in dictionaries, children's books, religious texts and textbooks for learners. Arabic terms: tashkiil (تشكيل), taHriik (تحريك) - (action of supplying the vowel points) , also known as ḥarakāt (حركات — the singular is ḥaraka حركة) - (the diacritical marks), Hebrew term: ניקוד nikud.

"Now vocalization is largely vowelization, and vocal tones are a complex of sound and resonance."

vocalization   

diacritization    vocalization    tashkeel    tashkiil    niqqud