WordReference English-French Dictionary © 2014:

Principal Translations/Principales traductions
alors que Il arriva alors que nous étions à table (pendant)while, when conjconjunction: Connects words, clauses, and sentences--for example, "and," "but," "because," "in order that."
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WordReference English-French Dictionary © 2014:

Compound Forms/Formes composées
alors même que conjconjonction: mot de liaison entre deux propositions. Ex : "et, mais, si, que"even though conjconjunction: Connects words, clauses, and sentences--for example, "and," "but," "because," "in order that."
c'est alors que And then…
  And that is when…
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'alors que' found in these entries
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