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1 du ad. [hausnartu] to speculate, to think about, to reflect on, to deliberate
gaizkiaren jatorriaz espekulatu: to speculate about the origin of evil
2 du ad. to speculate, to conjecture
zer ote dakien espekulatzen ibili beharrean, galde egiozu zuzenean: instead of speculating about what she knows, ask her directly
3 du ad. [ondasunekin] to speculate