39966
So どれ means "which". When you add か,も,でも the "which" becomes "some,any,every"
definitions which for "which" I don't quite understand.
CC BY-SA 3.0
2016-09-10T04:59:15.813
39096
2016-10-13T16:34:37.573
2016-09-11T12:39:18.153
15891
15891
question
interrogatives
What is the meaning of doreka, doremo, and doredemo which is taken from dore?
* どれ which 
  * どれか which? 
  * どれも neither, unless used as どれもいい then it becomes "which ever" or if used with a verb どれも出来る = either or all (depending on how many things) 
  * どれでも which ever, or all and どれでもいい expresses indifference
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2016-09-12T01:04:33.007
39141
2016-09-12T04:06:21.873
2016-09-12T04:06:21.873
9831
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39096
answer
Imagine you have options among several things, including selecting all or not
at all. That's the meaning (or... sense?) of dore in this case, in my
understanding. Adding the か or も or でも adds meaning to the option(s), which
becomes any,some, or every.

(Note, may be incorrect in perspective of syntax. Based on my recognition)
CC BY-SA 3.0
2016-10-10T07:55:28.823
39860
2016-10-10T07:55:28.823
10859
39096
answer
どれか is similar to 何か (something) or 誰か (somebody).  
どれか means one among several options.  
Example:  
この中のどれか、頂戴できましょうか.  
Can you give me one of these?

どれも is similar to いつも (always) or どこも (everywhere).  
どれも means all options.  
Example:  
どれも見事だ。They are all beautiful.

どれでも is similar to 誰でも (anyone) or 何でも (anything)  
どれでも means any one among several options.  
Example:  
その中でどれでも好きなのを買いなさい。Buy whichever you like.
CC BY-SA 3.0
2016-10-13T16:34:37.573
39966
2016-10-13T16:34:37.573
18157
39096
answer