whats the difference in usage between “near ”and “nearby”？ I'm looking for this library. Is it near? I'm looking for this library. Is it nearby? https://dictionary.cambridge.org/grammar/british-grammar/nearby Nearby is an adverb or an adjective meaning ‘not far away’: Does Paul live nearby? (adverb) Luckily, the nearby buildings weren’t damaged by the fire. (adjective) We don’t use nearby as a preposition. We use near: He worked in a restaurant near the station. Not: He worked in a restaurant nearby the station. Do not concern yourself about it. Do not be concerned. If you must concern yourself with things that you cannot fix, you will be in for disappointment.

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To be concerned is usually a lesser form than worry. Do not be concerned. Do not worry. Concern is about occupying your mind, usually with some sense of something bad, but not always. So "I am concerned about ...." has the sameintent as "I concern myself with ..." To me the meanings are the same, rather than different uses of the word.

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Concern isn’t used very often as a verb. It’s a little formal. When used as a verb it means “to be about” or “deal with.” For example, “This story concerns a friend of mine.” In other words, “This story is about a friend of mine.” Near and nearby: I would end a sentence with nearby, not near. “My friend lives nearby.” In contrast, I’d say, “My friend’s house is near mine.”