Text: 1 to have (something) as a subject matter<the book concerns the challenges faced by children growing up in single-parent households>Synonymscover, deal (with), pertain (to), treat (of)Related Wordsappertain (to), bear (on or upon), refer (to), relate (to); allude (to), glance (upon), mention, touch (upon); offer, present; contain, embrace, encompass, entail, include, incorporatePhraseshave to do withNear Antonymsexclude, omit; disregard, ignore, neglect, overlook, pass over, slight 2 to be the business or affair of<the problems of air and water pollution that concern all of us>Synonymsaffect, involve, touchRelated Wordsapply (to), relate (to); embroil, ensnare, entangle, implicate 3 to trouble the mind of; to make uneasy<we were greatly concerned by reports that yet another previously unknown virus is now posing a threat>— see disturb 1

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