coal
Pronunciation: [koʊl]
Context: "energy"
(noun) a black or dark brown rock that is burned to produce heat and energy. People often use coal to make electricity, heat homes, or power machines.
Example
The power plant uses coal to produce electricity for the entire city.
Example
We decided not to use coal anymore because it's not good for the environment.
Example
Where does the coal for the fireplace come from?
Context: "material"
(noun) a type of solid fuel that can be mined from the ground. It is formed from ancient plants and is used in various industries.
Example
The miners worked hard to extract high-quality coal from the mine.
Example
Coal is not often used in construction because there are better materials available.
Example
What process is used to extract coal from the earth?
Context: "color"
(noun) a term used to describe a black color often associated with the look of coal or things that are very dark.
Example
She wore a dress that was as black as coal for the fancy event.
Example
The paint was not as dark as coal; it looked more like gray.
Example
Do you think coal is the darkest color you can find?
Context: "filling"
(verb) to load or fill something with coal, usually in a furnace or a fire.
Example
Every morning, they coal the fire to keep the house warm.
Example
They stopped coaling the engines since they now use cleaner energy.
Example
When do you need to coal the stove again?