circular

nuclear bomb

remote control, remote operation (doing something from a distance)

customer / guest / visitor

crane

大統領: president of a country

投票所: polling place

統計学: the field of statistics

湯桶読み: A reading pattern for certain kanji compound words, using the native Japanese kun'yomi for the first kanji, and the Chinese-derived on'yomi for the second kanji.

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