rev

/rev/

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The word "rev" can be used as both a noun and a verb, and it is often related to engines and motors. Here's a simple explanation:

Definition:

1. As a Noun: "Rev" is short for "revolution," which refers to the number of times an engine's crankshaft makes a full turn in one minute. For example, if an engine is running at 6000 revs, it means it is completing 6000 full rotations every minute.

   • Example: "The car's engine was doing 3000 revs when I pressed the gas pedal."

2. As a Verb: To "rev" means to increase the number of rotations per minute of an engine. When you "rev up" an engine, you are making it run faster, which usually produces a louder noise.

   • Example: "He revved the engine to show how powerful it was."

Usage Instructions:

• You can use "rev" when talking about cars, motorcycles, or any machinery with an engine.
• Use it in both casual conversation and more technical discussions about engines.

Advanced Usage:

• In a technical context, you might hear phrases like "high revving engine," which refers to an engine designed to operate at high speeds.

Word Variants:

• Revolution: The full word from which "rev" is derived.
• Revs: The plural form, referring to multiple instances of revolution (for example, "The engine reached 5000 revs.").

Different Meanings:

• While "rev" mainly refers to engines, in a broader sense, it can also mean to increase activity or excitement in other contexts. For example, "revving up" a project means to increase its pace or enthusiasm.

Synonyms:

• For the noun: Revolutions, RPM (revolutions per minute)
• For the verb: Accelerate, Speed up

Idioms and Phrasal Verbs:

• Rev up: This phrasal verb means to increase speed or energy.

  • Example: "We need to rev up our marketing efforts for the new product."

• Rev your engines: This phrase means to prepare for action, often used before starting a race or competition.

  • Example: "It's time to rev your engines; the race is about to start!"

Summary:

"Rev" is a versatile word mostly used in the context of engines. As a noun, it refers to how fast an engine is running, and as a verb, it describes the action of making an engine run faster.

Academic

Noun

1. rate of revolution of a motor
   • the engine was doing 6000 revs

Verb

1. increase the number of rotations per minute
   • rev up an engine

Synonyms

• revolutions per minute
• rpm
• rev up