gear

gear — noun

1. A round wheel or disc with teeth around its edge that fits together with another

1.nounB1
Definition

A round wheel or disc with teeth around its edge that fits together with another such wheel inside a machine. Together, sets of gears control how fast the moving parts turn and how much force is available.

Example

A broken gear in the washing machine drum stopped it from spinning.

The bicycle's chain moves from one gear to another when Amihan changes the pedal speed.

collocation: change gears

Common collocations
  • change gear
  • shift gear
  • gear teeth
  • gear system
  • gear mechanism
  • gear wheel
  • in gear
  • out of gear
Synonyms
  • cog

    informal term for a single toothed wheel, common in everyday speech

  • cogwheel

    more technical term for a toothed wheel

  • sprocket

    a gear with pointed teeth that fits into a chain, common on bicycles

Usage Note

A single toothed disc is a gear; the whole system of connected gears is called gearing or the gear train.

Common Mistakes

The car has a problem with its gear box' (when spelling as two words).
The car has a problem with its gearbox.
'gearbox' is written as one word in standard English.

2. The set of tools, clothing, and other items that you need for a particular sport

2.nounB1
Definition

The set of tools, clothing, and other items that you need for a particular sport, hobby, job, or activity.

Example

Adaeze packed all her camping gear, including the tent and sleeping bag.

collocation: camping gear / sports gear

Firefighters must check their safety gear before entering a burning building.

collocation: safety gear

Common collocations
  • camping gear
  • fishing gear
  • climbing gear
  • safety gear
  • protective gear
  • sports gear
  • military gear
Synonyms
  • equipment

    more formal and broader; includes machinery as well as personal items

  • kit

    British English term for a set of items for a specific purpose

  • tackle

    used for sports equipment such as fishing tackle

  • apparatus

    formal term for technical or scientific equipment

Usage Note

Used without a or an. Often appears with a preceding noun describing the activity (camping gear, sports gear, fishing gear).

Common Mistakes

I need a gear for camping.
I need camping gear for the trip.
'gear' is uncountable in this sense; don't use 'a gear'.

3. Casual word for clothes, especially when they are part of a particular style or

3.nounB2
Definition

Casual word for clothes, especially when they are part of a particular style or look.

Example

The punk band wore black leather gear covered in zips and chains.

informal register

Élise found some cool vintage gear at the second-hand market.

Common collocations
  • casual gear
  • party gear
  • designer gear
  • vintage gear
Synonyms
  • outfit

    more common in both British and American English; refers to a complete set of clothes worn together

  • clobber

    British slang, very informal

  • threads

    American slang for clothes

Usage Note

This sense is mainly British informal. In American English, outfit or clothes is preferred.

4. A slang term for illegal substances that people take for their mind-altering eff

4.nounC1
Definition

A slang term for illegal substances that people take for their mind-altering effects.

Example

The courts are trying to stop the trade of gear on the streets of London.

slang: gear = illegal drugs

The documentary showed how young people are tempted to buy gear from dealers.

Common collocations
  • deal gear
  • buy gear
  • sell gear
Synonyms
  • drugs

    the neutral, standard term that is safe in all contexts

  • stuff

    vague slang, also used for drugs in informal speech

Usage Note

Uncountable. This is British criminal slang; learners should recognise it but be cautious about using it.

5. The personal things someone keeps or carries with them.

5.nounB2
Definition

The personal things someone keeps or carries with them.

Example

Caleb packed all his gear into two suitcases before moving to Taipei.

When the boat sank, the sailors lost all their personal gear.

collocation: personal gear

Common collocations
  • personal gear
  • pack your gear
  • leave your gear
Synonyms
  • belongings

    more common in everyday English, especially for personal items one carries

  • possessions

    more formal and broader, includes valuable items and property

6. A level of speed, effort, or activity, used in phrases that compare how fast or

6.nounB2
Definition

A level of speed, effort, or activity, used in phrases that compare how fast or how hard someone is working.

Example

After a slow morning, the team finally got into gear and finished the project.

idiom: get into gear = start working efficiently

When the deadline approaches, Paloma shifts gear and works twice as fast.

idiom: shift gear = change speed or approach

Common collocations
  • get into gear
  • shift gear
  • move into top gear
  • slip out of gear
  • in gear
Synonyms
  • pace

    refers to speed of activity but without the mechanical metaphor

  • rhythm

    focuses on steady, repeated pattern rather than speed

Usage Note

Almost always appears in metaphorical fixed phrases: get into gear, shift gear, move into top/higher gear, slip out of gear.

Common Mistakes

I need to gear to study harder.
I need to get into gear and study harder.
'gear' alone is not a verb in this sense; use the full phrase 'get into gear'.
Idioms

A rude way to tell someone to hurry up.

Get your ass in gear or we'll miss the train.

If you don't move your ass, we'll be late for the meeting.

To start working effectively or to make something start working effectively.

After the holiday, it took me a while to get into gear.

The manager finally got the project into gear after weeks of delay.

To become out of control or not working properly.

The whole schedule slipped out of gear when the power went out.

Her emotions were thrown out of gear by the sudden news.

gear — verb

Word family

  • gearing
    nounC1
  • geared
    adjectiveB2
  • gearbox
    nounB2
  • gearstick
    nounB2
  • gear lever
    nounB2

Synonym discussion

Sense: noun/2

All four words refer to items needed for a specific activity, but they differ in scope and context. Gear is the most casual, everyday word — you take camping gear on a trip or wear protective gear for sports. Equipment is the broadest and most neutral term, covering anything from a simple tool to a complex machine (gym equipment, laboratory equipment). Kit is chiefly British and suggests a collected set of items for one purpose (a first-aid kit, a tool kit, sports kit). Tackle is used almost exclusively for fishing and climbing gear (fishing tackle). Apparatus is the most formal and technical, used for scientific or specialised devices (laboratory apparatus, breathing apparatus). In everyday speech, gear and equipment are the safest choices: "Did you bring your swimming gear?" sounds natural, while "Did you bring your swimming apparatus?" would sound odd.

Common collocations

Phrases

  • in gear
  • out of gear
  • into gear
  • change gear
  • shift gear
  • get into gear
  • move into top gear

Prepositions

Etymology

Old NorseMiddle EnglishEnglish

Gear comes from Old Norse gervi or gǫrvi, meaning 'apparel, equipment.' It entered Middle English around the 13th century, initially referring to clothing and personal belongings. By the 14th century it had extended to mechanical equipment on ships, and by the 1800s it gained its modern mechanical sense of toothed wheels in machinery. The two core meanings — 'equipment' and 'toothed wheel' — developed from the same root idea of things that are prepared or fitted together.