There are a total of 29 7-letter words containing 'zen', and the number may vary in different dictionaries. You can specify the dictionary and order.

• bedizen ₂₁
• benzene ₂₁
• brazens ₂₀
• chazzen ₃₁
• citizen ₂₀
• cozened ₂₁
• cozener ₂₀
• denizen ₁₉
• dizened ₁₉
• dozened ₁₉
• dozenth ₂₀
• fazenda ₂₁
• khazens ₂₃
• lozenge ₂₀
• mizzens ₂₉
• netizen ₁₈
• wizened ₂₁
• wizzens ₂₉
• zenaida ₁₈
• zenanas ₁₈
• zeniths ₁₉
• kaizens ₂₀
• bronzen ₁₈
• fizzens ₂₈
• gizzens ₂₆
• lozengy ₂₀
• weazens ₁₉
• wizener ₁₉
• zendiks ₂₁

There are 29 7-letter words containing zen in the well-known word game dictionary, 22 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 29 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 21 in the Words with Friends (WWF) dictionary.