solid

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(as) solid as a rock

Exceptionally stable, sturdy, and reliable. They've been married for 50 years, so their relationship has to be solid as a rock. That table must be as solid as a rock to withstand the ceiling collapse with hardly a scratch.

See also: rock, solid

a (good/solid/sound/etc.) grasp of/on (something)

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!

See also: grasp, of, on, solid, sound

be (as) solid as a rock

To be stable, sturdy, and reliable. They've been married for 50 years, so their relationship has to be solid as a rock. That table must be as solid as a rock to withstand the ceiling collapse with hardly a scratch.

See also: rock, solid

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!

See also: get, grasp, of, on, solid, sound

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!

See also: grasp, have, of, on, solid, sound

solid

1. slang Very good or cool. Tim's coming tonight after all? Hey, solid. That was a solid demo. I think they've got a really chance of getting a record deal.

2. slang Consecutively. I've been working on this project for six hours solid—I need a break.

*solid as a rock

Cliché very solid; dependable. (*Also: as ~.) Jean has been lifting weights every day, and her arm muscles are solid as a rock. This company has always built power tools that are as solid as a rock.

See also: rock, solid

(as) solid as a ˈrock

extremely solid and reliable: The Irish team were solid as a rock in defence. ▶ ˌrock-ˈsolid adj.: The company has a rock-solid reputation.

See also: rock, solid

solid

1. mod. good; great; cool. Listen to that solid beat.

2. mod. consecutive; consecutively. Then he “had the flu” for three days solid.