| noun | something that interests you because it is important or affects you “the safety of the ship is the captain's concern” |
| noun | an anxious feeling “care had aged him” |
| noun | a feeling of sympathy for someone or something “She felt strong concern for those less fortunate” |
| noun | something or someone that causes anxiety; a source of unhappiness “New York traffic is a constant concern” |
| noun | a commercial or industrial enterprise and the people who constitute it “he bought his brother's business” |
| verb | be relevant to “There were lots of questions referring to her talk” |
| verb | be on the mind of “I worry about the second Germanic consonant shift” |
| concern | verb | be on the mind of |
| care | verb | be concerned with |
| fear | verb | be uneasy or apprehensive about |
| worry | verb | be concerned with |
| vex | verb | disturb the peace of mind of; afflict with mental agitation or distress |
| reference | noun | the most direct or specific meaning of a word or expression; the class of objects that an expression refers to |
| pertinent | adjective | being of striking appropriateness and pertinence |
| pertinency | noun | relevance by virtue of being applicable to the matter at hand |
| pertinence | noun | relevance by virtue of being applicable to the matter at hand |
| concern | noun | an anxious feeling |
| interest | noun | a sense of concern with and curiosity about someone or something |
| occupation | noun | any activity that occupies a person's attention |