resharpen
/riˈʃɑrpən/
verb
- To make the edge or point of a blade or tool sharp again.
- He used a whetstone to resharpen the kitchen knife.
- The barber had to resharpen his scissors after cutting many heads of hair.
- You should resharpen your pencil before the test.
- To improve or restore a skill, ability, or mental focus.
- She took a refresher course to resharpen her accounting skills.
- Playing chess helps me resharpen my problem-solving mind.
- After a long vacation, he needed to resharpen his concentration at work.