Vocabulary consisting only from characters you are able to read
ご存知
ごぞんじ
(1)(hon) knowing, (2)(an) acquaintance mix
水平線
すいへいせん
horizon (related to sea or lakes)mix
関係演算子
かんけいえんざんし
(comp) relational operatormath
通路
つうろ
passage, pathway, roadway, avenue, aislemix
研究所
けんきゅうじょ
research establishment (institute, laboratory, etc.); research establishment (institute, laboratory, etc.)all, gakkou, shigoto