get a (good/solid/sound/etc.) grasp of/on (something)(redirected from get a good grasp on something)
get a (good/solid/sound/etc.) grasp of/on (something)
To attain a firm, clear understanding or determination of something. You will need to get a solid grasp of the material, as you'll all be tested on it next week. I'm trying to get a grasp on English, but I don't understand some of these idioms at all!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.