錬

Selected Words with Definitions from WWWJDIC

• 精錬 せいれん refining; smelting; tempering (n,vs)
• 錬金術 れんきんじゅつ alchemy (n)
• 鍛錬 たんれん tempering; forging; hardening; disciplining; training (n,vs)
• 百戦錬磨 ひゃくせんれんま be schooled by adversity in many battles; veteran (n)
• 錬成 れんせい training; drilling (n)
• 錬磨 れんま training; practice; cultivation (n,vs)