To relate or pertain to; have an intimate relation to or connection with.To affect the interest of; have interest for; be of importance to.To interest; busy; occupy; engage: used reflexively or in the passive voice: as, to concern one's self in the affairs of others; I was not concerned in that transaction.To disturb; make uneasy or anxious; cause disquiet to; trouble: generally in the past participle: as, to be deeply concerned about the safety of a friend.To confuse with drink; slightly intoxicate: in the past participle.Synonyms To interest, touch, affect.n. That which relates or pertains to one; matter of concernment; business; affair.n. Interest; matter of importance; that which affects one's welfare or happiness.n. Solicitous regard; solicitude; anxiety; agitation or uneasiness of mind; disturbed state of feeling; trouble.n. An establishment or firm for the transaction of business; a manufacturing or commercial establishment; a business house.n. A material object, especially one that is complicated or large; a contrivance: with a touch of depreciation.n. Synonyms Solicitude, etc. (see care); Concern at, about, for (see unconcerned); carefulness, thoughtfulness.