[chuckadams]

> Opusi

The plural of "Opus" is "Opera". Might be a tad confusing tho :)

[robocat]

Opuses is also correct English, and clearer in non-academic contexts.

Opera is the traditional plural from Latin, now perhaps for more scholarly use in English.

Results from a quick search.

[chuckadams]

I'll do the faux German thing then: Opusen :)

[robocat]

pseudofauxteutönic

[skeledrew]

Wondered for a second "what does that browser have to do with all this?"