Check also 一
Names and idioms with total stroke of 4:
太 切 一十一 上乙 小乙
Names and idioms similar to 一〇〇〇か:
捷一 一本道 郡一朗 一火 一盞
Yojijukugo(idioms with 4 Kanji characters) including 一〇〇〇か:
一盛一衰 一往直前 倶会一処
Idioms including 一〇〇〇か:
一本槍 一堂に会する 一か八か