a solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans, a large piece of rock that has become detached from a cliff or mountain; a boulder, a person or thing that is strong, reliable, or consistent

between a rock and a hard place, on the rocks, rock bottom

Formal and Informal Expressions of rock

In different contexts, you can replace 'rock' with suitable alternatives. In a more formal setting, 'stone, mineral' is apt. In informal speech or writing, 'hard stuff, rocks' is a commonplace synonym.

rock: Explore its Definition & Usage

rock Definition

1a solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans
2a large piece of rock that has become detached from a cliff or mountain; a boulder
3a person or thing that is strong, reliable, or consistent

Using rock: Examples

Take a moment to familiarize yourself with how "rock" can be used in various situations through the following examples!

Example
The climbers scaled the rock face with ease.
Example
The beach was covered in smooth rocks.
Example
He's been my rock through tough times.
Example
The foundation of the building is built on solid rock.

rock Synonyms and Antonyms

Synonyms for rock

Phrases with rock

between a rock and a hard place
in a difficult and inescapable position
Example
I'm between a rock and a hard place - I need to finish this project but I also need to take care of my sick child.
on the rocks
in a state of difficulty, especially because of financial problems or a failing relationship
Example
Their marriage is on the rocks after he lost his job.
rock bottom
the lowest possible level or point
Example
After losing everything, he hit rock bottom and had to start over.

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Summary: rock in Brief

The term 'rock' [rɒk] refers to a solid mineral material found on the surface of the earth or other planets, as well as a detached piece of a cliff or mountain. It can also refer to a person or thing that is strong and reliable. Common phrases include 'between a rock and a hard place,' meaning in a difficult position, 'on the rocks,' referring to a failing relationship or financial problems, and 'rock bottom,' meaning the lowest possible point.