Particles で and も and でも


In both these sentences, what does `でも` mean? (I think I know the meaning of
the sentences, just not the particles)

[code]

    カードでもいいですか。
    なごやでもうっていますか。
    
[/code]

I know that `で` is a particle that can denote location or mean something like
"by means of". I know that `も` is a particle that means too, either, etc. I
also know that `でも` can mean but, but this doesn't seem to be the case.

Do both particles acquire different meanings or do they become some sort of
particle themselves? Or do they simply retain their meanings, but combined
have a different one?

Thank you!

P.S.: I do not know any kanji, hence I wrote in kana and hope you can too.




It can be loosely translated to "even".

で is "with", and も is "also", so you put them together and makes "also with",
or "even with"...but we generally wouldn't say that in English, so it becomes
"even": "You can even pay by card".




It can be loosely translated to "even".

で is "with", and も is "also", so you put them together and makes "also with",
or "even with"...but we generally wouldn't say that in English, so it becomes
"even": "You can even pay by card".

