filled with regret or concern; used often to soften an unpleasant statement; "I'm afraid I won't be able to come"; "he was afraid he would have to let her go"; "I'm afraid you're wrong"
feeling worry or concern or insecurity; "She was afraid that I might be embarrassed"; "terribly afraid of offending someone"; "I am afraid we have witnessed only the first phase of the conflict"
having feelings of aversion or unwillingness; "afraid of hard work"; "afraid to show emotion"
an electric railway operating below the surface of the ground (usually in a city); "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"