In our modified pinyin chart, there are some syllables that have no initial, which we refer to as a "null initial". For ease of typing, we represent it as "_-", but you may in other places see it represented as "∅-". It's a symbolic part of the system and has no pronunciation.
Association
Association
Master Chief
Explanation
The association for this initial is [_-] Master Chief. This initial has no sound, so we chose him because he barely talks. [_-] Master Chief is the super soldier protagonist of the Halo videogame series.
Learn more about Master Chief