世界博 せかいはく Meanings Noun world expo; world fair See also: 世界博覧会 (せかいはくらんかい). Kanji 世 world. Read as セ. 界 realm. Read as カイ. 博 broad. Read as ハク. Words containing 世界博 世界博覧会 (せかいはくらんかい) international exposition Jinuma: Japanese Dictionary · Word lists