sion voiced
Rule Core
The 46 sion voiced rule explains when -sion / -sure / -sual are pronounced /ʒ/, a voiced fricative. This typically occurs after vowels or voiced consonants due to historical voicing assimilation.
Articulation Guide
Tongue approaches the post‑alveolar area without touching; lips relaxed and slightly rounded; vocal cords vibrate with steady airflow—no stop release.
Word Analysis
- casual /ˈkæʒuəl/: -sual → /ʒu/.
- casualty /ˈkæʒuəlti/: maintains the /ʒ/ from casual.
- leisurely /ˈlɛʒərli/: -sure → /ʒər/, parallel to pleasure.
Pitfalls
Not every -sion is voiced; mission uses /ʃ/. Check the preceding sound and morphology.
Phonics Breakdown
Post‑alveolar tongue, continuous airflow, voiced
Sound Reference
- Check the preceding sound for voicing
- Anchor with pleasure/measure as models
Common Mistakes
Devoicing /ʒ/ to /ʃ/
Applying /ʃən/ to all -sion