潮州

Pronunciation note: Chaozhou [ie] ~ Shantou [io] (潮 dio5).

Same spelling, different realisation: [tie⁵⁵ tsiu³³] in Chaozhou city against [tio⁵⁵ tsiu³³] in Shantou. The derived IPA differs by variety while the Peng'im does not.

Pronunciation note: Shantou keeps [io] where Chaozhou fronts to [ie].

[tio⁵⁵ tsiu³³] — unfronted on `io` like Shantou. This word has no bare `e` syllable, so it doesn't show Chaoyang's other defining feature, the Southern /ɯ/→/u/ merger; see tests/derive.test.ts for a word that does.

Pronunciation note: Mogher's table gives Chaoyang/Puning/Huilai the same unfronted correspondence as Shantou. Re-checked 2026-08-15 (issue #29) with a literal, non-summarized read of the raw table: all four of mogher's regional comparisons (Shantou, Chaoyang, Puning, Huilai vs. Chaozhou) independently give the identical "-iê | -io" row, confirming the value encoded here and resolving the original narrative-gloss-vs-raw-table contradiction (see REVIEW.md §9). Still kept at medium, not high: this remains a single source. A search for a second one came up empty — checked pujdict's `/doc/puj.html` and `/doc/pinyin.html` (no io/ie correspondence content), learnteochew.com's pronunciation page (names Teochew city/Swatow/Jieyang for this vowel, never Chaoyang/Puning/ Huilai), and zh.wikipedia's 潮州话音系学 article (regional table exists but only for tone contours, not rimes). One unexplored lead: pujdict's `/doc/accents.html` has a "典型例字口音表"/"口音演变模式" section that looks like the right shape but renders its table client-side, so it didn't come through on an automated fetch — worth a real-browser look.