conservation

conservation — noun

1. the act of taking care of wild animals, plants, forests, oceans, and historicall

1.nounB2
Definition

the act of taking care of wild animals, plants, forests, oceans, and historically important buildings so that they are not damaged or destroyed by people

Example

Ada joined a conservation project that protects sea turtles on the coast of Mexico.

collocation: conservation project

The old railway station in Christopher's town was saved by a local conservation group.

Common collocations
  • wildlife conservation
  • nature conservation
  • conservation area
  • conservation project
  • conservation group
  • conservation efforts
  • conservation laws
Synonyms
  • preservation

    Preservation aims to keep things exactly as they are; conservation allows careful management and sustainable use.

  • protection

    Protection is a broader, more general term; conservation implies active, planned management over time.

  • safeguarding

    Safeguarding is more formal and often used for legal or security contexts rather than the natural environment.

Antonyms
  • destruction

    The opposite of protecting natural areas or historic buildings.

  • neglect

    Conservation requires active care; neglect means failing to take care of something.

Usage Note

Often used before another noun to describe a type of protection, as in 'conservation area', 'conservation group', or 'conservation project'.

Common Mistakes

The conservation of the environment is important for animals.
Conservation of the environment is important for animals and people.
'conservation' is uncountable and does not need an article when used as a general concept.

2. the practice of using limited natural resources like water, oil, and gas in a ca

2.nounB2
Definition

the practice of using limited natural resources like water, oil, and gas in a careful way so that they do not run out too quickly

Example

The hotel asks guests to join their water conservation programme by reusing towels.

collocation: water conservation

Ravindra's family follows strict energy conservation rules, such as turning off lights in empty rooms.

collocation: energy conservation

Common collocations
  • energy conservation
  • water conservation
  • fuel conservation
  • conservation measures
  • conservation programme
  • conservation technology
  • conservation rules
Synonyms
  • saving

    Saving is a more general, everyday word; conservation suggests a planned long-term effort.

  • economy

    Economy (as in 'fuel economy') focuses on efficiency and cost reduction; conservation focuses on preventing waste.

  • preservation

    Preservation of resources suggests keeping them untouched; conservation allows careful use.

Antonyms
  • waste

    Wasting resources is the opposite of using them carefully.

  • overconsumption

    Using more than necessary, especially of limited natural resources.

Usage Note

Typically combined with the name of the resource being saved, such as 'energy conservation', 'water conservation', or 'fuel conservation'. The phrase 'conservation of + resource' is also possible but less common in everyday speech.

Common Mistakes

We need to conservation water.
We need to conserve water.
'conservation' is a noun; the verb form is 'conserve'.

3. in physics, the principle that within a closed system, measurable properties lik

3.nounC1
Definition

in physics, the principle that within a closed system, measurable properties like energy and the amount of matter stay constant, simply shifting from one form to another

Example

Mayumi learned about the conservation of energy by studying a swinging pendulum in physics class.

grammar pattern: the conservation of [property]

The conservation of mass shows that burning wood turns matter into gas and ash rather than destroying it.

Common collocations
  • conservation of energy
  • conservation of mass
  • conservation of momentum
  • law of conservation
  • principle of conservation

Grammar Patterns

the conservation of [physical property]

Usage Note

In formal physics writing, always followed by 'of' plus the property — 'conservation of energy', 'conservation of mass', 'conservation of momentum'. The fixed expression 'the law of conservation of ...' is common in textbooks.

Common Mistakes

The energy conservation says that energy cannot be created.
The conservation of energy says that energy cannot be created or destroyed.
In physics, use 'conservation of energy', not 'energy conservation', which is the everyday term for saving electricity.

Word family

Synonym discussion

Sense: noun/1

Conservation, preservation, and protection all involve keeping something safe, but they differ in approach and scope. Conservation is the broadest term: it covers the careful management and sustainable use of natural resources, wildlife, and historic sites—allowing human interaction as long as it is responsible. Preservation is more strict: it aims to keep something in its original state, with minimal human interference. For example, a conservation area might allow guided tours and sustainable farming, whereas a preservation area might ban all human entry to protect delicate ecosystems. Protection is the most general word and can apply to anything from skin cream to national security. In environmental contexts, choose conservation when management and continued use are involved, and preservation when the goal is to keep something untouched.

conservation ↗preservation ↗protection ↗

Common collocations

Nouns

Adverbs

Phrases

  • in the interest of conservation
  • a matter of conservation

Prepositions

Etymology

LatinOld FrenchEnglish

Conservation comes from the Latin word 'conservare', which is made of 'com-' (meaning 'together') and 'servare' (meaning 'to keep safe or guard'). The word entered English in the late 1300s with the general meaning of 'keeping something safe from harm'. By the 1800s, it had taken on the modern meaning of protecting natural environments and resources, and in the 1900s it became a key term in physics for laws about quantities that stay the same.