bar from attention or consideration
"She dismissed his advances"
fail to notice
"The crowd completely ignored his sneeze because they were all so focused on the game."
be ignorant of or in the dark about
"He completely ignored the new safety regulations until an accident forced him to pay attention."
To deliberately not listen or pay attention to.
"She tried to explain her side of the story, but he simply ignored her every word."
In plain English: To ignore something means to deliberately choose not to notice or pay attention to it even though you can see or hear it.
"She decided to ignore his rude comments and continue working on her project."
Usage: Use "ignore" when you intentionally choose not to notice or respond to someone or something, such as walking past a comment without answering it. Do not use it for accidental oversight, which implies you failed to notice rather than deciding to disregard.
The word "ignore" comes from the French ignorer, which was borrowed from Latin. It originally meant "to have no knowledge of" or "to take no notice of."