There are a total of 100 11-letter words containing 'hen', and the number may vary in different dictionaries. You can specify the dictionary and order.

• alisphenoid ₁₉
• apprehended ₂₂
• archenemies ₂₀
• archenteron ₁₈
• burthensome ₂₁
• calisthenic ₂₁
• clomiphenes ₂₄
• comprehends ₂₄
• earthenware ₁₇
• heathendoms ₂₀
• heathenisms ₁₉
• heathenized ₂₆
• heathenizes ₂₅
• hendecagons ₂₁
• hendiadyses ₁₈
• henotheisms ₁₉
• henotheists ₁₆
• hypersthene ₂₁
• hyphenating ₂₄
• hyphenation ₂₂
• hypothenuse ₂₂
• inauthentic ₁₉
• indophenols ₂₀
• kitchenalia ₂₂
• kitchenette ₂₁
• kitchenware ₂₄
• lengtheners ₁₈
• lengthening ₂₁
• lichenology ₂₃
• lithenesses ₁₅
• methenamine ₂₁
• millihenrys ₂₁
• myasthenias ₁₉
• myasthenics ₂₂
• pantothenic ₂₁
• parthenotes ₁₇
• phenacaines ₂₁
• phenacetins ₂₁
• pheneticist ₂₀
• phenocopies ₂₃
• phenocrysts ₂₂
• phenologies ₂₀
• phenomenons ₂₂
• polyphenols ₂₄
• prehensions ₁₈
• refreshened ₁₈
• reprehended ₁₉
• shenanigans ₁₈
• smoothening ₂₀
• sphenopsids ₂₁
• strengthens ₁₇
• subtrahends ₁₉
• thenceforth ₂₂
• unauthentic ₂₀
• heathenries ₁₇
• phenolating ₁₇
• phentermine ₁₈
• aminophenol ₁₈
• archenteric ₁₈
• arrhenotoky ₂₁
• asthenopias ₁₆
• authentical ₁₆
• contrahents ₁₆
• deprehended ₁₉
• disburthens ₁₇
• everywhence ₂₅
• forehenting ₁₈
• heathenesse ₁₇
• heathenised ₁₈
• heathenises ₁₇
• heathenness ₁₇
• henchperson ₂₁
• hyphenising ₂₃
• hyphenizing ₃₂
• hyposthenia ₂₂
• hyposthenic ₂₄
• kitchendoms ₂₃
• overburthen ₁₉
• overhenting ₁₈
• phenetidine ₁₇
• phenformins ₂₁
• phenologist ₁₇
• phenomenise ₁₈
• phenomenism ₂₀
• phenomenist ₁₈
• phenomenize ₂₇
• phenotyping ₂₂
• phenylamine ₂₁
• polyethenes ₁₉
• prehensible ₁₈
• refreshener ₁₇
• reprehender ₁₇
• sphenograms ₁₉
• teschenites ₁₆
• thenardites ₁₅
• toughenings ₁₆
• unburthened ₁₇
• whenceforth ₂₅
• zwischenzug ₃₈
• zygosphenes ₂₉

There are 100 11-letter words containing hen in the well-known word game dictionary, 51 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 97 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 54 in the Words with Friends (WWF) dictionary.