Definition

Noun 1. The source or upper part of a river: "Headwater" refers to the streams and smaller rivers at the highest part of a river system, where the river begins. It is the origin point or the uppermost tributaries of a river.

Usage

The word "headwater" is typically used in its plural form, "headwaters," to describe the multiple small streams that collectively form the beginning of a river. It is a geographical term often used in environmental, scientific, and travel contexts.

Examples

• Explorers sought to map the headwaters of the Amazon River.
• The pollution in the headwaters can affect the entire river system downstream.
• Protecting the headwaters is crucial for maintaining clean water.

Advanced Usage

• "Headwater region/area": The geographical area containing the sources of a river.
  • The expedition traveled deep into the remote headwater region.
• "Headwater stream": A specific stream that is part of the source of a larger river.
  • This small headwater stream is home to several rare fish species.

Variants and Related Words

• Headwaters (n, plural): The standard and most common form of the word.
• Source (n): A more general synonym for the place where a river begins.
• Spring (n): A place where water flows naturally from the ground, which can be a headwater.
• Tributary (n): A river or stream flowing into a larger river. A headwater is often the first and smallest tributary.

Synonyms

• Source
• Origin
• Wellspring
• Fount

Antonyms

• Mouth (of a river)
• Estuary
• Delta

Related Phrases

• "From headwaters to mouth": A phrase describing the entire course of a river, from its source to where it ends in a lake or ocean.
  • The documentary followed the river from headwaters to mouth.

Noun

1. the source of a river
   • the headwaters of the Nile