Definition

A black or brownish-black solid fossil fuel that is used for heating and generating electricity.

Example

The power plant burns coal to produce electricity.

Conversation

Did you hear that they want to coal the old power plant?

Yeah, I read something about it. It’s about time!

I hope they replace it with something more sustainable.

Definitely! Clean energy is the way to go.

Definition

A black or dark brown material that is used as fuel, made from ancient plants that have turned into rock-like substances over millions of years.

Example

The workers loaded the coal onto the train for transportation to the power plant.

Conversation

Have you ever seen how they make coal from plants over millions of years?

Yeah, it's fascinating how natural processes create fuel like that!

I read that coal used to be a primary source of energy.

Definition

A black or brownish-black solid that is made from ancient plant material and is used as a fuel for heating and generating electricity.

Example

The workers began to coal the furnace to prepare for the winter.

Tense Forms

Conversation

Did you remember to coal the grill before the barbecue?

Oh no, I totally forgot to do that!

It's okay, I can help you coal it now if you want.

Root Explanation

The word 'coal' originates from Old English 'cāl', which means 'charcoal' or 'coal'. It is derived from Proto-Germanic '*kōlô', meaning 'coal' or 'charcoal'.

Memory Tip

Think of the Old English word 'cāl' for charcoal, which helps you remember that 'coal' refers to the substance used for fuel.

Visually Confused Words