trainer

trainer — noun

1. someone whose job is to teach people or animals the skills they need for a parti

1.nounA2
Definition

someone whose job is to teach people or animals the skills they need for a particular activity, sport, or type of work

Example

Noa worked as a personal trainer at the local gym for three years.

personal trainer [common profession]

The dolphin trainer taught her four animals to jump through hoops during the show.

animal trainer + possessive determiner

Common collocations
  • personal trainer
  • fitness trainer
  • dog trainer
  • animal trainer
  • head trainer
  • professional trainer
  • trainer of
Synonyms
  • coach

    more common for team sports and competitions; a coach often handles strategy as well as skills

  • instructor

    focuses on teaching a specific skill in a structured setting, such as a driving instructor or swimming instructor

  • tutor

    for academic subjects or private lessons, not sports or fitness

Antonyms
  • trainee

    the person who is being trained

  • student

    a learner in an academic or skill-based setting

Grammar Patterns

trainer + of + people/animals

possessive + trainer

trainer + for + [institution/team]

Usage Note

For team sports, 'coach' is more common than 'trainer'. A trainer usually works one-on-one or with small groups on fitness, skills, or behaviour.

Common Mistakes

I hired a maths trainer for my son.
I hired a maths tutor for my son.
'trainer' is used for physical or practical skills; 'tutor' and 'teacher' are used for academic subjects.

2. a kind of lightweight footwear that people wear when playing sports or going abo

2.nounB1
Definition

a kind of lightweight footwear that people wear when playing sports or going about their daily activities in a relaxed way

Example

Elena bought a new pair of white trainers for her morning runs in the park.

pair of + trainers [common collocation]

The shop sells both leather shoes and lightweight trainers for schoolchildren.

Common collocations
  • pair of trainers
  • white trainers
  • black trainers
  • wear trainers
  • trainers and socks
  • designer trainers
Synonyms
  • sneaker

    American English equivalent; also used internationally for casual sports shoes

  • athletic shoe

    more formal term used in both British and American English

  • running shoe

    a type of trainer designed specifically for running

Grammar Patterns

pair of + trainers

adjective + trainers

wear + trainers

Usage Note

This sense is primarily British English. In American English, the same type of shoe is called a 'sneaker' or 'athletic shoe'. The word 'trainer' for footwear is rarely used in the US.

Common Mistakes

She wore her new trainers to a job interview in Chicago.
She wore her new sneakers to a job interview in Chicago.
In American English, 'sneaker' is the usual word; 'trainer' sounds odd to US readers.

3. a piece of equipment, such as an exercise machine or flight simulator, that help

3.nounB2
Definition

a piece of equipment, such as an exercise machine or flight simulator, that helps someone practise or improve a skill

Example

The gym installed ten new elliptical trainers along the far wall near the windows.

elliptical trainer [common fitness machine]

Pilots spend hundreds of hours in a flight trainer before they fly a real plane.

flight trainer [specialised device]

Common collocations
  • elliptical trainer
  • flight trainer
  • rowing trainer
  • bike trainer
  • stationary trainer
  • exercise trainer
Synonyms
  • simulator

    focuses on replicating real conditions, such as a flight or driving simulator

  • exercise machine

    general term for fitness equipment, not specific to skill training

  • training equipment

    broader term that includes any device or tool used for practice

Grammar Patterns

[purpose] + trainer

trainer + for + [skill/activity]

Word family

  • train
    verbA1
  • training
    nounA2
  • trainee
    nounB1
  • retrain
    verbB2
  • retraining
    nounB2
  • untrained
    adjectiveB2

Synonym discussion

Sense: noun/1

All four words describe someone who teaches others, but they apply in different contexts. A trainer focuses on building practical skills and physical fitness, often working one-on-one or with small groups — for example, a personal trainer at a gym or someone who teaches animals. A coach is more common in team sports and competitions, where strategy and motivation matter as much as technique. An instructor teaches a specific skill in a structured, step-by-step way, like a driving instructor or swimming instructor. A tutor gives private academic lessons, usually outside of school hours. To compare: 'Noa hired a personal trainer to improve her strength, but the football coach decided the team's match strategy, and her son's maths tutor helped him prepare for the exam.'

coach ↗instructor ↗tutor ↗

Common collocations

Phrases

  • work as a trainer
  • trainer by profession

Prepositions

  • with (a trainer)

Etymology

Old FrenchAnglo-NormanEnglish

The word 'trainer' comes from the verb 'train', which entered English from Old French 'traïner' (to pull or drag). Over time, 'train' developed the sense of 'to guide or direct growth', and later 'to instruct in a skill'. The suffix '-er' marks the agent — a person or thing that does the action. The earliest use of 'trainer' (15th century) referred to someone who trains people or animals. The meaning 'sports shoe' appeared in British English in the early 1900s, and the sense 'training machine or simulator' followed as technology created new tools for practice.