sharpen
sharp.en \'sha:r-p*n\ \'sha:rp-(*-)nin\ \'sha:rp-(*-)n*r\ vb or sharp.en.ing : to make sharp or sharper : to grow or become sharp or sharper - sharp.en.er n
sharp.en \'sha:r-p*n\ \'sha:rp-(*-)nin\ \'sha:rp-(*-)n*r\ vb or sharp.en.ing : to make sharp or sharper : to grow or become sharp or sharper - sharp.en.er n