also: いずれも
adverb
any; all; every; both; either; none (with negative verb)
Used to refer to all items in a group, or to any one of them. With a negative verb, it means 'none of them'. The reading いずれも is slightly more formal.
この店のケーキはどれも美味しい。
All of the cakes in this shop are delicious.
どれも私のものではありません。
None of these are mine.
いずれも重要な問題です。
Both are important issues.
Used specifically for two items, while どれも/いずれも can be used for two or more.
Means 'any one' or 'some', implying a choice, whereas どれも means 'all' or 'any' in a universal sense.
Compound of the interrogative どれ/いずれ ('which') and the inclusive particle も ('also, even').