What does "move" mean in the following? Does it exactly mean act or behave or action?
"The move could prove to be a major setback for international efforts to avert drastic global warming."
Then may I ask what is the meaning of "move" here? How can I have a good understanding of "move" used in this context? If I fraze it, I encounter its different uses so this would be more confusing. What is your advice? How did you native-speakers learn the words? This is still a mystery for me. I learn [STRIKE]better[/STRIKE] Turkish words better with dictionaries.
In the quoted sentence,
the move refers to a previously-mentioned action or policy change. Without having read the linked article, I can guess pretty confidently that it specifically refers to Mr. Trump's withdrawal of the United States from the Paris climate accords.
In other words, you could re-phrase the sentence as follows:
Mr. Trump's withdrawal of the United States from the Paris climate accords could prove to be a major setback for international efforts to avert drastic global warming.
Dictionaries are excellent tools for learning words. They don't do everything, though. Have you Googled for more tutorials on how to use a dictionary effectively? The one I linked to a few days ago (and didn't watch) did not meet with Piscean's approval, but I bet you can find some useful ones.