Interested in Language
Recently, I have been hearing people say "close in on" something a lot. I am aware that "close in on" and "get closer to" are not always interchangeable. But as a non-native speaker, I found it extremely difficult to fathom the difference between them. Could someone elaborate with examples?
Le tyan, that is not enough context for us to say anything of value. Your sentence is grammatically correct, as is "They are getting closer to us". We need more context to know if one, or both, is appropriate.
"Get closer to" is emotionally neutral. "Close in on" implies an element of threat.