What does this notation indicate?

[megakentar]

I've been playing through some pieces and I'm trying to figure out what the notation "(ou)" is supposed to mean.

Any help is appreciated.

[chopinlover01]

We'd be able to help if you could give us an example.

[faulty_damper]

"Ou" is French for "or".

[j_menz]

"Ou" is French for "or".

Not if it has an accent grave (where it is "where"), and in either case is not particularly helpful without context (including an indication that it might in fact be French).

[megakentar]

Here is an attachment of a segment from the score.

[j_menz]

It appears to mean that the lower C is optional - that is, you can omit it if you can't do a satisfactory jump/roll and just go with the upper one.

[Bob]

Interesting.

Maybe "or" as in "pick which octave you think sounds best?