prep
concerning
kuhn-SUR-nihng
prep
1
About; regarding; on the subject of.
"She had questions concerning the new policy."
adj
1
Causing worry.
"The test results were somewhat concerning."
How to Use Concerning
Learner’s notesIn plain EnglishAs a preposition it means "about"; as an adjective it means "worrying."
Common mistake
Don't mix up the two uses: "concerning your email" (about) versus "the results are concerning" (worrying).
Word Forms
more concerning comparative, concernings plural, most concerning superlative
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She had questions _____ the new policy.
Etymology
From concern plus -ing; the preposition and adjective both grew out of the verb's meaning.