renewable
Able to be replaced naturally and used again.
ExampleThe lecture compares renewable energy with fossil fuels.
ExampleThe speaker says wind power is the cheapest renewable option for the project.
Usage Scenarios
Energy-source contrast
Listen for renewable when a talk contrasts solar, wind, or hydro power with fossil fuels or non-renewable resources.
ExampleThe lecture compares renewable energy with fossil fuels.
Example or limitation
After renewable appears, the tested detail may be a source, cost, advantage, storage problem, or project recommendation.
ExampleThe speaker says wind power is the cheapest renewable option for the project.
Usage Guide
Listen for renewable when a recording discusses energy, natural resources, sustainability, or environmental policy. It often appears before a specific source such as solar, wind, or hydro power.
High-value listening chunks include renewable energy, renewable resources, renewable sources, and non-renewable fuels; these phrases help you hear the contrast.
Do not read renewable as simply good for the environment. IELTS recordings may test cost, reliability, storage, or examples as well as the basic meaning.
Word Forms & Word Building
Renewable is built from renew plus -able. Renew means make new again, and -able means capable of being done.
Renewable is the adjective in renewable energy and renewable resources. Non-renewable is its common opposite.
Renew and renewal are related forms, but IELTS environment texts usually test renewable as an adjective.
Meaning Boundaries
Renewable vs recyclable
Renewable means naturally replaced or replenished. Recyclable means a material can be processed and used again after being thrown away.
Renewable vs sustainable
Sustainable is broader and includes long-term social, economic, or environmental balance. Renewable focuses on whether a resource can be replaced naturally.
Best IELTS context
Expect renewable in listening or reading about energy sources, electricity, climate policy, fossil fuels, solar power, wind power, and resource use.
Memory Tricks
Hear renewable with energy or resources first. The nearby contrast is often fossil fuels, coal, oil, or non-renewable sources.
Anchor the word in renewable energy, renewable resources, solar power, and wind power.
When listening, note whether the speaker gives an advantage, limitation, cost, or example of the renewable source.
Common Traps
Do not read renewable as simply clean. Renewable means naturally replaceable; a passage may still discuss cost, reliability, or storage problems.
Do not confuse renewable energy with recyclable materials. Renewable usually describes energy sources or resources, not just objects that can be recycled.
In listening, check whether the speaker contrasts renewable with fossil fuels, non-renewable resources, or traditional energy.