Englishfor English speakers
irreplaceable
—
adjective
impossible to replace
irreplaceable antiques
natural
Adjective
—
Something is natural if people didn't make it.
s, plants and rocks are natural things.
—
Something is natural if it's the way it usually is, without people changing it, or is a way that is not a surprise.
It's only natural for you to think that.
resource
Noun
—
A resource is something that is available and useful.
We don't have enough time and resources to finish the job.
Canada has fewer natural resources, including trees, fish, and oil, than it did in the past.