Concerned citizens can have a huge impact.

[Maybo]

I'm learning the use of "concerned".
Some sentences from dictionaries:

1. worried and feeling concern about something/somebody (Oxford)
Concerned citizens can have a huge impact.

2. having an interest or involvement in something (Britannica)
The lawyers called a meeting of all the concerned parties.

Does "concerned citizens" mean "worried citizens"?
"Concerned (before noun)" sometimes means "worried" or "involved". Does it depend on context?

 

[teechar]

Does "concerned citizens" mean "worried citizens"?

Sentence #1 is somewhat vague, and so it is not a good example to illustrate that sense of "concerned". You can see better examples in the link below.

Improve Your Writing skills

Improve your writing skills, learn from professional writers.

fraze.it

"Concerned (before noun)" sometimes means "worried", or and sometimes means "involved". Does it depend on context?

Yes, it does.

 

[Maybo]

Sentence #1 is somewhat vague, and so it is not a good example to illustrate that sense of "concerned". You can see better examples in the link below.

Improve Your Writing skills

Improve your writing skills, learn from professional writers.

fraze.it

I've found a sentence from the link. In the sentence below, it seems that "concerned citizens" mean citizens who show care or who care about the world. Am I right?

 

[emsr2d2]

Did Forbes really forget to add the article before "world"? Tut, tut.

 

[teechar]

it seems that "concerned citizens" mean citizens who show care or who care about the world. Am I right?

No.
1- "Concerned" in that sentence does mean worried to some extent about some issue(s).
but
2- "Can change the world" is an idiomatic (not literal) expression. It means that they can achieve monumental/radical change.

to change the world

Definition of to change the world in the Idioms Dictionary by The Free Dictionary

idioms.thefreedictionary.com

 

[Tarheel]

I think it's a stretch to say that somebody at a school board meeting cares about the world. They do, however, care about their small part of the world.