= зао̀стрям гл.
1. begin to sharpen, whet;
2. (
остря) point; sharpen, whet;
3. прен. intensify, enhance, sharpen; aggravate;
~ бдителността си intensify/enhance o.’s vigilance;
~ вниманието си direct o.’s attention (to);
~ се narrow to a point, become pointed; taper.