At least in a sentence

If on that forbidding moor a difficult and dangerous quest should lie before us, this was at least a comrade for whom one might venture to take a risk with the certainty that he would bravely share it.
Arthur Conan Doyle, The Hound of Baskervilles

The probability was, therefore, that she was telling the truth, or, at least, a part of the truth.
Arthur Conan Doyle, The Hound of Baskervilles

“I have, at least, a well-polished, silver-plated coffee-pot in front of me,” said he.
Arthur Conan Doyle, The Hound of Baskervilles

It was, at least, absolutely effective.
Arthur Conan Doyle, The Hound of Baskervilles

The tragedy was still black enough, but this man had at least deserved death by the laws of his country.
Arthur Conan Doyle, The Hound of Baskervilles

The circumstances connected with the death of Sir Charles cannot be said to have been entirely cleared up by the inquest, but at least enough has been done to dispose of those rumours to which local superstition has given rise.
Arthur Conan Doyle, The Hound of Baskervilles

Then Holmes and I both fired together, and the creature gave a hideous howl, which showed that one at least had hit him.
Arthur Conan Doyle, The Hound of Baskervilles

Be the answer what it might, I should at least have something to report to Sherlock Holmes.
Arthur Conan Doyle, The Hound of Baskervilles

At least I might go the length of saying that there is some evidence that this may be so.
Arthur Conan Doyle, The Hound of Baskervilles

“As to the latter part, I have no means of checking you,” said I, “but at least it is not difficult to find out a few particulars about the man’s age and professional career.”
Arthur Conan Doyle, The Hound of Baskervilles

If its appearance did not frighten its victim to death, at least it would paralyze the resistance which might be offered.
Arthur Conan Doyle, The Hound of Baskervilles

We know at least that he came so far in safety.
Arthur Conan Doyle, The Hound of Baskervilles

This at least was real, but it might have been the work of a protecting friend as easily as of an enemy.
Arthur Conan Doyle, The Hound of Baskervilles

The whole steep slope was covered with grey circular rings of stone, a score of them at least.
Arthur Conan Doyle, The Hound of Baskervilles

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Dictionary

Collins
— You use at least to say that a number or amount is the smallest that is possible or likely and that the actual number or amount may be greater. The forms at the least and at the very least are also used.
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Macmillan
— not less than a particular amount or number, and possibly more
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