grasp of(redirected from a grasp of something)
*(solid) grasp of somethingand *(sound) grasp of something; *(good) grasp of something
Fig. a firm understanding of something. (*Typically: get ~; have ~; give someone ~.) Try to get a grasp of the basic rules. You don't have a good grasp of the principles yet. John was unable to get a solid grasp of the methods used in his work, and we had to let him go.