1 To bring or direct toward a common center or objective; focus
2. To gather into one body, mass, or force
3. To accumulate (a toxic substance) in bodily tissues
4. To make less dilute
5. To express or exhibit in condensed form
6. To draw toward or meet in a common center
7. Gather, collect
8. To focus one's powers, efforts, or attention
1. To become focussed or come into focus
2. To put into focus.
3. To put into focus; as of an image on a screen; SYN. sharpen.