lagoon

lagoon — noun

1. a relatively shallow body of salt water along a coastline that is partly or comp

1.名詞B1
釋義

a relatively shallow body of salt water along a coastline that is partly or completely cut off from the open ocean by a natural barrier such as a coral reef, a sandbank, or a strip of land, creating a calm sheltered area.

例句

The turquoise lagoon behind the coral reef was full of colourful fish.

coral reef lagoon — noun-noun compound for natural settings

Layla and her family went swimming in the warm lagoon every afternoon.

同義詞
  • inlet

    a narrow body of water that reaches into the land from the sea, but is not separated by a barrier reef

  • bay

    a wide curve of coastline that is open to the sea on one side, unlike a lagoon

  • sound

    a large sea inlet that is deeper and wider than a lagoon

反義詞
  • open ocean

    the vast body of sea water beyond the coastline, not sheltered by any barrier

文法句型

adjective + lagoon

lagoon + noun (e.g. lagoon water)

用法筆記

Frequently used in travel and geography writing. Distinguish from 'bay', which has a wider opening to the sea, and 'inlet', which is a narrow channel connecting directly to the ocean.

常見錯誤

❌We went swimming in the lagoon next to the river.
✅We went swimming in the lagoon behind the coral reef.
💡A lagoon is separated from the sea by a natural barrier, not connected to a freshwater river.
❌The children built sandcastles on the lagoon.
✅The children built sandcastles on the beach next to the lagoon.
💡A lagoon is a body of water, not a landform.

2. a man-made shallow basin or pond, constructed to hold and process liquid waste s

2.名詞B2
釋義

a man-made shallow basin or pond, constructed to hold and process liquid waste such as sewage or industrial water, often as part of a treatment system before the water is released into the environment.

例句

The town built a large waste lagoon behind the factory to hold industrial water.

waste lagoon — noun-noun compound for artificial basins

Mert tested the water in the treatment lagoon before it went into the river.

treatment lagoon — noun-noun compound in environmental contexts

同義詞
  • settling pond

    a pond where solid waste particles are allowed to sink to the bottom, a type of treatment lagoon

  • treatment pond

    a general term for any artificial basin used in wastewater processing

文法句型

noun + lagoon (e.g. sewage lagoon)

adjective + lagoon (e.g. treatment lagoon)

用法筆記

Common in environmental engineering and farming contexts. Almost always used in compounds like 'sewage lagoon', 'waste lagoon', or 'treatment lagoon'. This sense does NOT describe a natural or recreational body of water.

常見錯誤

❌The children played in the waste lagoon behind the school.
✅The waste lagoon is fenced off because the water is unsafe.
💡Artificial waste lagoons are hazardous and never used for recreation.
❌A beautiful lagoon in the park had ducks swimming in it.
✅A sewage lagoon is used to treat waste, not for wildlife or leisure.
💡Mixing the natural and industrial senses confuses the meaning.