五書 is read as ごしょ (gosho) and means Pentateuch.
ごしょ
gosho
ごりんのしょ
The Book of Five Rings (martial arts treatise by Miyamoto Musashi, 1643)
しんとうごぶしょ
five fundamental texts of Ise Shinto
ししょごきょう
the Four Books and Five Classics of Confucianism
ご
five
ごじゅう
fifty
いつか
5th day of the month
いつつ
eight o'clock (old time system)
ごがつ
May
さみだれ
early-summer rain
さつき
fifth month of the lunar calendar
いか
fiftieth day after the birth of a child
ごとおび
days of the month ending in 5 or 0 (when payments are often due)