往訪[ouhou] visit
公式訪問[koushikihoumon] official visit
探訪[tanbou] searching
訪ねる[tazuneru] to visit
訪れる[otozureru] to visit

訪客[houkyaku] visitor
訪日[hounichi] visit to Japan
訪米[houbei] visit to America
訪問[houmon] call
訪う[tou] to ask