Definition of 天王山 (てんのうざん)
てんのうざん
                        天王山
てんのうざん
tennouzan
Common word
noun
•
        
strategic point, crucial time, watershed, crunch(from the site of the crucial Battle of Yamazaki in 1582)
Related Kanji
| 天 | heavens, sky, imperial | 
| 王 | king, rule, magnate | 
| 山 | mountain |