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trainer

[trey-ner] /ˈtreɪ nər/
noun
1.
a person or thing that trains.
2.
a staff member on an athletic team who gives first aid and therapy to injured players.
3.
a person who trains athletes; coach.
4.
a person who trains racehorses or other animals for contests, shows, or performances.
5.
an airplane or a simulated aircraft used in training aircrew members, especially pilots.
Origin
1590-1600
1590-1600; train + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for trainer
  • Lois is a part-time swim instructor and personal trainer.
  • The trainer trains the docile horse to turn, with his sensitive neck, whichever way the rider indicates.
  • She was an avid rider and trainer, and built the barns and track that still are there today.
  • He can fire his personal trainer or check out of the clinic.
  • In her previous career, as a horse trainer, she gave some of them riding lessons.
  • His trainer was unconsciously signalling answers to the horse with involuntary cues.
  • His trainer reports that he now turns up his trunk at anything less than a ten-cent coin.
  • In half the trials, a helpful trainer stood behind and pointed to the container holding the treat.
  • Some bird trainer teaches a bird to recognize patterns appearing in a picture.
  • If you want to do the same, make sure you get competent advice from a trainer.
British Dictionary definitions for trainer

trainer

/ˈtreɪnə/
noun
1.
a person who trains athletes in a sport
2.
a piece of equipment employed in training, such as a simulated aircraft cockpit
3.
(horse racing) a person who schools racehorses and prepares them for racing
4.
(pl) an informal name for training shoes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for trainer
n.

c.1600, agent noun from train (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for trainer

in military aviation, an airplane that is designed and used to train pilots to operate advanced aircraft effectively. The complicated modern military airplane requires a high degree of skill on the part of pilots. Military training programs commonly make use of a single-engine aircraft for primary training phases, with twin-jet trainers for transition stages

Learn more about trainer with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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7
8
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