wave dash (U+301C): punctuation used in Japanese to indicate ranges (e.g. 5時〜6時 “from 5 to 6 o’clock”, where English would use an en dash) or subtitles (題目〜副題〜 “Title: Subtitle”, where English would use a colon)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).