How to use the English word exhaust in English

 The word "exhaust" in English can function as both a verb and a noun, and its meaning changes depending on its grammatical role and context.

Here's a breakdown of how to use "exhaust" in English:

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I. As a Verb

When "exhaust" is a verb, it generally means to deplete, consume entirely, or make someone/something extremely tired.

Forms:

• Base form: exhaust
• Past tense: exhausted
• Past participle: exhausted
• Present participle: exhausting
• Third person singular: exhausts

Common Meanings and Usages as a Verb:

1. To make someone very tired; to tire out completely (physical or mental):

   • "The long hike exhausted us." (Made us very tired)
   • "Studying for exams can be very exhausting." (Tiring)
   • "Don't exhaust yourself by working too many hours."

2. To use up all of something; to deplete or consume completely:

   • "We exhausted our supply of fresh water during the desert crossing." (Used up all of it)
   • "The company exhausted its budget on marketing." (Spent all of it)
   • "They need to find new resources before the current ones are exhausted."

3. To explore or discuss a subject thoroughly, leaving nothing more to be said or done:

   • "We've exhausted all possible solutions to the problem." (Considered all of them)
   • "Let's not exhaust the topic; we can discuss it more tomorrow."
   • "The committee exhausted every avenue in their investigation."

Examples in Sentences (Verb):

• "Running a marathon will exhaust even the fittest athlete."
• "We must be careful not to exhaust the planet's natural resources."
• "After hours of debate, they finally exhausted the subject."
• "The continuous noise was exhausting my patience."
• "By the end of the day, I was completely exhausted."

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II. As a Noun

When "exhaust" is a noun, it refers to waste gases or the system that expels them.

Forms:

• Singular: exhaust
• Plural: exhausts (less common, usually refers to multiple exhaust systems)

Common Meanings and Usages as a Noun:

1. The waste gases or fumes expelled from an engine, machine, or system:

   • "Car exhaust contains harmful pollutants."
   • "The smell of diesel exhaust filled the air."
   • "They measured the particulate matter in the factory's exhaust."

2. The system of pipes, muffler, etc., through which waste gases are expelled from an engine:

   • "My car needs a new exhaust system."
   • "The mechanic checked the exhaust for leaks."
   • "A loud rumbling noise was coming from the truck's exhaust."

Examples in Sentences (Noun):

• "Breathing in too much exhaust can be dangerous."
• "The vehicle's exhaust pipe was visibly rusty."
• "New environmental regulations aim to reduce vehicle exhaust emissions."
• "He designed a more efficient exhaust for the racing car."

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III. Common Phrases and Related Words:

• Exhaust fumes: Waste gases (noun phrase)
• Exhaust pipe: The pipe that carries exhaust gases away (noun phrase)
• Exhaust system: The entire mechanism for expelling waste gases (noun phrase)
• Exhaust fan: A fan used to draw out stale air or fumes (noun phrase)
• Exhaustion (noun): The state of being extremely tired or of having used up all of something.
  • "She collapsed from sheer exhaustion."
  • "The team worked to the point of exhaustion."
• Exhaustible (adjective): Capable of being used up.
  • "Fossil fuels are an exhaustible resource."
• Inexhaustible (adjective): Incapable of being used up.
  • "The ocean is an inexhaustible source of salt."

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Understanding the context (whether it's an action or a thing, and what kind of thing) is key to correctly using and interpreting "exhaust."