Vocabulary consisting only from characters you are able to read
大国
たいこく
large country, major powersmix
十両
じゅうりょう
second highest sumo division, wrestlers of the second highest sumo divisionmix
投下
とうか
(1)throwing down, dropping, airdrop, (2)investment suru
大洋州
たいようしゅう
Oceania, Pacific Ocean countriesmix
係数
けいすう
(math) coefficient, factor, proportional constantmix