v. make pointed; make sharp or sharper
We had to sharpen our arguments.
Sentence in Classic:
Holmes was so charmed with one of them that he insisted on drawing it in his notebook, broke his pencil, had to borrow one from our host and finally borrowed a knife to sharpen his own.
The Return of Sherlock Holmes By Arthur Conan Doyle Context
Van Helsing examines, he tells me, her teeth very carefully, whilst she is in the hypnotic condition, for he says that so long as they do not begin to sharpen there is no active danger of a change in her.
Five great cities set up the anvil and sharpen the sword, strong Atina and proud Tibur, Ardea and Crustumeri, and turreted Antemnae.
As for the tribe itself, it had been content to announce to Montcalm, through his emissaries, with Indian brevity, that their hatchets were dull, and time was necessary to sharpen them.
The Last of the Mohicans By James Fenimore Cooper Context
I heard him draw a pleasant picture to Zillah of what he would do if he were as strong as I: the inclination is there, and his very weakness will sharpen his wits to find a substitute for strength.
Wuthering Heights By Emily Bronte Context
Cranly, leaning against a pillar, was picking his teeth with a sharpened match, listening to some companions.
A Portrait of the Artist as a Young Man By James Joyce Context