御客さん[okyakusan] guest
御客様[okyakusama] guest
押掛け客[oshikakekyaku] uninvited guest
佳客[kakyaku] good visitor
花客[kakaku] flower-viewing guest

華客[kakaku] special guests
雅客[gakaku] man of letters
看客[kankaku] spectators
観客[kankyaku] audience
観光客[kankoukyaku] tourist

テロ攻撃[terokougeki] terrorist attack
応急攻撃[oukyuukougeki] hasty attack
攻め[seme] attack
攻める[semeru] to attack
攻め入る[semeiru] to invade

攻め滅ぼす[semehorobosu] to attack and overthrow
攻究[koukyuu] study
攻撃[kougeki] attack
攻撃ヘリコプター[kougekiherikoputaa] attack helicopter
攻撃開始線[kougekikaishisen] line of departure

それ以来[soreirai] since then
出来るようになる[dekiruyouninaru] (something) has become possible
やって来る[yattekuru] to come along
ぴんと来る[pintokuru] to get (a joke or explanation)
以来[irai] since

遠来[enrai] foreign or distant visitor
往来[ourai] coming and going
家来[kerai] retainer
外来[gairai] external origin
外来患者[gairaikanja] outpatients