have a (good/solid/sound/etc.) grasp of/on (something)(redirected from have a good grasp of)
Like this video? Subscribe to our free daily email and get a new idiom video every day!
have a (good/solid/sound/etc.) grasp of/on (something)
To have a firm, clear understanding or determination of something. I hope everyone has a solid grasp of the material, as you'll be tested on it next week. I thought I had a pretty good grasp on English idioms, but I don't understand this one at all!
have a grasp of
see under get a fix on.