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Elementary Dictionary
       

warn

 
 
pronunciation:
worn
features:
Homophone Note
part of speech: verb
inflections: warns, warning, warned
definition 1: When you warn someone, you tell them about something that might be dangerous or hurt them.
The weather service warned people about the tornado.
synonyms:
alert, caution
definition 2: When you warn someone not to do something, you tell them that they should not do that thing because a bad thing could happen if they do it. It's the same thing if you warn someone against doing something.
Joe warned Shawn not to get too close to the neighbor's dog because it bites people. Shawn tried to pet the dog anyway and the dog bit him.The highway department warned travelers not to drive in the ice storm because the roads were very slippery.The park ranger warned the visitors against picking mushrooms. She said that some of them are dangerous.
Homophone Note
The words warn and worn sound alike but have different meanings.