The definition of concern can be found in any dictionaries like this link. Now, let's focus on a single example from that dictionary: Many people expressed concern over moves to restore the death
Concern for others is a social good." There is a concern in the medical community that these drugs could induce a negative long-term effect regarding X. There is one specific concern; concern is used as a countable noun. There are concerns in the medical community that these drugs will A, B and C. there are three specific concerns: A, B and C.
singular vs plural - "there are concerns that" VS "there is concern ...
Because a concern of a bust would indicate that the bust has some concern, but that is not the case. He listened to the concerns of the people means that the people were concerned about some things. In this case the concerns are about a bust.
I want to say I'm worrying about something Which one should I use，either “concern of something” or “concern about something”？ Thanks for your answering.
Issue and concern, in the senses used here, are different, but can be used similarly. A concern is something to be concerned about, something that causes doubt or worry or similar. An issue is a topic for debate, or a problem that one might hope to solve. However, people don't usually think too much about the precise meaning of the words, they just use them in the patterns they are familiar ...
word request - How do concern and issue differ? - English Language ...
0 "Dear Concern" and "Dear Concerned" are both far from idiomatic. I believe the phrase you are looking for is " To whom in may concern " which is a common email salutation when sending an email (but especially when writing a letter) to someone of whom you do know know the name.