Bedeutung von “trainer” — Learner’s Dictionary

trainer

noun [ C ] us uk /ˈtreɪnər/
PERSON

B1 someone who trains people:

a fitness trainer
ANIMALS

B1 a person who trains animals:

a racehorse trainer
SHOE UK US sneaker

A2 a soft sports shoe:

a pair of trainers

(Definition von “trainer” aus dem Cambridge Learner's Dictionary © Cambridge University Press)