鼓動【こどう】
beat, palpitation, pulsation, throbbing
太鼓【たいこ】
drum
鼓舞【こぶ】
encouragement, inspiration, rousing, stirring up, raising (e.g. morale)
鼓膜【こまく】
eardrum, tympanic membrane
太鼓判【たいこばん】
large seal, large stamp, seal of approval, guarantee, endorsement
大太鼓【おおだいこ】
large drum, bass drum
舌鼓【したつづみ】
smacking one's lips (over food)