同音異義語: a homophone (words with the same pronunciation)

動物学: zoology

高速道路: highway

異口同音: in concert

鎖分銅: a chain with a weight on one or both ends, such as might be used on a pulley to help lift loads; a Japanese martial arts chain weapon, consisting of or based on such a weighted chain

浮動票: swing vote

動力学: kinetics; dynamics

東北: the northeast region of Japan, specifically the northernmost six prefectures in Honshu.

北極熊: a polar bear

所念: (Classical Japanese, archaic) to seem, to appear, to look like / 所念: (Classical Japanese, archaic) to sound / 所念: (Classical Japanese, archaic) to be regarded as