Merriam-Webster Online Dictionary
concern (verb)transitive verb
1.
a) to relate to be about - the novel concerns three soldiers
b) to bear on
2.
to have an influence on - involve , also to be the business or affair of - the problem concerns us all
3.
to be a care, trouble, or distress to - her ill health concerns me
4.
intransitive verb
- engage occupy he concerns himself with trivia obsolete to be of importance - matter
1.
a) marked interest or regard usually arising through a personal tie or relationship
b) an uneasy state of blended interest, uncertainty, and apprehension
2.
something that relates or belongs to one - affair it's no concern of yours
3.
matter for consideration
4.
an organization or establishment for business or manufacture - a banking concern
5.
- contrivance gadget care
Merriam-Webster Online Thesaurus
concern (noun)1.
a commercial or industrial activity or organization
SYNONIMS:
business, company, concern, establishment, firm, house, interest, outfitRELATED WORDS:
conglomerate, corporation, multinational; association, cartel, chain, combine, syndicate, trust; agency, dealer, outlet; microenterprise2.
an uneasy state of mind usually over the possibility of an anticipated misfortune or trouble
SYNONIMS:
agita, agitation, anxiousness, apprehension, apprehensiveness, care, concern, concernment, disquiet, disquietude, fear, nervosity, nervousness, perturbation, solicitude, sweat, unease, uneasiness, worryRELATED WORDS:
strain, stress, tension; alarm ( alarum), anguish, consternation, desperateness, desperation, discomfort, discomposure, dismay, distraction, distress, disturbance, edginess, franticness, hand-wringing, jitters, jumpiness, panic, tremor; angst, fearfulness, torment, upset, vexation; cold feet, doubt, dread, foreboding, incertitude, misgiving, presentiment, suspense, uncertainty; compunction, qualm, scrupleNEAR ANTONYMS:
calm, calmness, content, contentment, ease, easiness, peace, peacefulness, placidity, placidness, quiet, quietude, sereneness, serenity, tranquillity ( tranquility), tranquilness; comfort, consolation, relief, solace1.
to have (something) as a subject matter
SYNONIMS:
cover, deal (with), pertain (to), treat (of)RELATED WORDS:
appertain (to), bear (on upon), refer (to), relate (to); advert (to), allude (to), cite, glance (upon), instance, mention, name, note, notice, quote, specify, touch (upon); offer, present; contain, embrace, encompass, entail, include, incorporateNEAR ANTONYMS:
exclude, omit; disregard, forget, ignore, neglect, overlook, overpass, pass over, slight, slur (over); brush (aside off), reject, shrug off2.
to be the business or affair of
SYNONIMS:
affect, involve, touchRELATED WORDS:
appertain (to), apply (to), bear (on), pertain (to), refer (to), relate (to); embroil, ensnare, entangle, implicate3.
to trouble the mind of; to make uneasy
SYNONIMS:
agitate, ail, alarm ( alarum), bother, concern, derail, discomfort, discompose, dismay, disquiet, distemper, distract, distress, exercise, flurry, frazzle, freak (out), fuss, hagride, perturb, undo, unhinge, unsettle, upset, weird out, worryRELATED WORDS:
aggravate, anger, annoy, bug, chafe, chivy ( chivvy), exasperate, fret, gall, get, grate, harass, harry, irk, irritate, nettle, peeve, pester, pique, put off, put out, rile, vex; bedevil, haunt, plague; abash, confound, confuse, discomfit, disconcert, discountenance, embarrass, faze, fluster, jar, mortify, nonplus, rattle, shake up; daunt, demoralize, discourage, dishearten, dispirit, unnerveNEAR ANTONYMS:
allay, alleviate, assuage; appease, conciliate, mollify, pacify, placate, propitiate