sharpen (v.)make sharp or sharper;
sharpen (v.)make crisp or more crisp and precise;
We had to sharpen our arguments
sharpen (v.)become sharp or sharper;
sharpen (v.)put (an image) into focus; "Please focus the image; we cannot enjoy the movie";
Synonyms: focus /
focalize /
focalise sharpen (v.)make (images or sounds) sharp or sharper;
sharpen (v.)raise the pitch of (musical notes);
sharpen (v.)give a point to;
sharpen (v.)make (one's senses) more acute;
This drug will sharpen your vision
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}