Significados de know unequivocally en inglés

Who was the last man known unequivocally to have had possession of those arrows?

And although a lot of stuff still didn't make sense, there were two things she knew unequivocally.

And for that reason alone Frank knew unequivocally that finding Dolchik's missing-persons file would be another milestone in his life.

As the public stripped supermarket shelves bare and pubs, restaurants and bars closed indefinitely and we knew unequivocally life had changed.