セカイイチ
Meanings
Adverb
Noun
1. best in the world
Pitch accent
イイチ
Composed of
the world; society; sphere; circle; world-renowned; world-famous
one; 1; best; first; foremost; beginning; start
Examples (7 in total)
I have the best family in the world!
My hometown is the best in the world.
That is the highest mountain in the world.