# Amazon

/ˈæməˌzɑn/ (US) · /ˈæməzən/ (UK) · CEFR B1 · Noun

Source: https://englishreference.com/word/amazon
Updated: 2026-08-15

## Definition

a very large and famous river in South America, or a huge tropical rainforest in the same area. It is known for having more water and more types of plants and animals than almost anywhere else.

For teachers: the world's largest river by volume, located in South America, or the vast tropical rainforest within its drainage basin. When used to refer to the geographical region, it is typically preceded by the definite article.

## Examples

- Many unique animals live in the Amazon rainforest.
- Scientists are studying how deforestation in the Amazon affects global weather patterns and biodiversity.
- The Amazon basin serves as a critical carbon sink for the planet, though its ability to sequester carbon is increasingly threatened by agricultural expansion and rising temperatures.

## Usage notes

- Typically used with the definite article ('the Amazon') when referring to the river or the region.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.