There are a total of 48 11-letter words containing 'luc', and the number may vary in different dictionaries. You can specify the dictionary and order.

• elucidating ₂₀
• elucidation ₁₈
• elucidative ₂₁
• elucidators ₁₇
• elucidatory ₁₉
• elucubrated ₂₁
• elucubrates ₂₀
• fluctuating ₂₃
• fluctuation ₂₁
• glucokinase ₂₃
• glucosamine ₂₂
• glucosidase ₁₉
• glucuronate ₂₀
• glucuronide ₂₁
• hallucinant ₂₁
• hallucinate ₂₀
• ineluctable ₂₁
• ineluctably ₂₃
• involucrate ₂₁
• lucidnesses ₁₈
• luciferases ₁₉
• luckinesses ₂₁
• lucratively ₂₃
• lucubrating ₂₃
• lucubration ₂₁
• noctilucent ₂₁
• pellucidity ₂₃
• radiolucent ₁₈
• reluctances ₂₀
• reluctantly ₂₀
• reluctating ₁₉
• reluctation ₁₇
• translucent ₁₈
• unluckiness ₂₃
• unreluctant ₁₉
• fluconazole ₂₅
• dilucidated ₁₆
• dilucidates ₁₅
• glucophores ₁₉
• glucosurias ₁₄
• involucella ₁₆
• luckenbooth ₂₂
• luckengowan ₂₁
• luckpennies ₁₉
• lucubrators ₁₅
• noctilucous ₁₅
• prehalluces ₁₈
• reluctivity ₁₉

There are 48 11-letter words containing luc in the well-known word game dictionary, 31 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 45 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 35 in the Words with Friends (WWF) dictionary.