火燵掛布[kotatsugake] cover for kotatsu
引っ掛る[hikkakaru] to be caught in
引っ掛ける[hikkakeru] to hang (something) on (something)
押掛ける[oshikakeru] to intrude on
押掛け客[oshikakekyaku] uninvited guest

下掛る[shimogakaru] to talk about indecent things
下駄掛け[getagake] wearing wooden clogs
夏掛け[natsugake] summer-use futon
掛り[kakari] starting
掛かり合う[kakariau] to have dealings with

鍵を掛ける[kagiwokakeru] to lock
鍵穴[kagiana] keyhole
鍵盤[kenban] keyboard (e.g. piano, computer)
黒鍵[kokken] black keys
打鍵[daken] keystroke

合鍵[aikagi] duplicate key
鍵っ子[kagikko] latchkey child
鍵束[kagitaba] bunch of keys
関鍵[kanken] locking doors