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without fail

adv. (context idiomatic English) certainly; by all means; as a matter of importance

Wikipedia
Without Fail

Without Fail is the sixth book in the Jack Reacher series written by Lee Child. It was published by Putnam in 2002. It is narrated in the third person.

Usage examples of "without fail".

And he answered him, Pursue: for thou shalt surely overtake them, and without fail recover all.

Cavanagh, take the keys of the case containing the holy slipper to your hotel this evening without fail.

Rarely a blizzard would cause postponement, but if the weather behaved itself, the goblins would come to the Timber Meet without fail.

The assassin, when the monster gave the order, would do his duty without fail.

Whereby the King was much gratified, and lauded the maiden not a little, and said that a girl of such high spirit merited considerate treatment, and bade Minuccio be his envoy to her, and comfort her, and tell her that without fail that very day at vespers he would come to visit her.

Gianni replied that there was nought that would give him so much pleasure, and that without fail, upon leaving her, he would make all needful arrangements for bringing her away when he next came.

Lachesis had described it precisely, so Norton would know it without fail.

This Never-fail points the direction of my own death -- or it may take me without fail to Dhrun's corpse.

I did not have to be told that a latrine should be downstream or that our shovel should be carried every time without fail-rules for a clean camp are as old as the Old Testment.

I did not have to be told that a latrine should be downstream or that our shovel should be carried every time without fail - rules for a clean camp are as old as the Old Testment.

I did not have to be told that a latrine should be downstream or that our shovel should be carried every time without fail -- rules for a clean camp are as old as the Old Testment.

Minister Chanboor gives me orders, and I carry them out without fail.