Combining Macron-Vertical-Line at U+1AD5 is a combining diacritic that adds a macron with a vertical stroke to a preceding base character, rather than standing as an independent symbol. It is part of the Combining Diacritical Marks Extended block, a set used mainly for specialized phonetic, linguistic, and textual annotation marks. Its practical use is narrow and scholarly. It may appear in phonetic transcription, dialect documentation, or manuscript-oriented linguistic work where an editor needs a precise diacritic not covered by the older combining-mark blocks. In such material, the exact value is defined by the transcription convention: the mark might distinguish a particular tone, length, stress-related feature, or editorial pronunciation detail when placed over a letter. Because it is a combining character, it attaches to the character before it and can display poorly if a font or shaping engine lacks good mark positioning. The main gotcha is searching and editing: the visible annotated letter is stored as a base character plus this separate mark, so deleting, cursor movement, and text matching may not behave like a single precomposed letter.