alt.
/ɔːlt/(亦作alt-)
combining form
- denoting a version of something, especially popular music, that is regarded as outside the mainstream of its genre表示“另类的”, “非主流的”（尤指流行音乐）：
alt.country.
另类乡村音乐。
词源
1990s: abbreviation of ALTERNATIVE, influenced by the alt. prefix of some Internet newsgroups.