diphthongization
noun
diphthongization is spelled D-I-P-H-T-H-O-N-G-I-Z-A-T-I-O-N: 16 letters. It appears about once in every 85 million words in written English, the 293,966th most frequent word form (wordfreq, 2021 data). As a noun, diphthongization means “The process by which a single vowel sound (monophthong) shifts to a two-vowel vocalization (diphthong)” (English Wiktionary, September 2026). The plural of diphthongization is diphthongizations.
How many letters and syllables are in diphthongization?
| Letters | 16: D-I-P-H-T-H-O-N-G-I-Z-A-T-I-O-N |
|---|---|
| In writing | about once in every 85 million words; the 293,966th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is diphthongization?
Diphthongization appears about once in every 85 million words in written English, the 293,966th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of diphthongization
- diphthongizations plural
- diphthongisation
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does diphthongization mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The process by which a single vowel sound (monophthong) shifts to a two-vowel vocalization (diphthong).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Diphthongization in Spanish, French, German and Portuguese
In the sense shift from monophthong to diphthong:
| Language | Words |
|---|---|
| French | diphtongaison |
| Portuguese | ditongação |
| Spanish | diptongación |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does diphthongization come from?
From diphthong + -ization.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).