There are a total of 25 6-letter words containing 'hl', and the number may vary in different dictionaries. You can specify the dictionary and order.

• archly ₁₄
• ashlar ₉
• ashler ₉
• dahlia ₁₀
• highly ₁₅
• lushly ₁₃
• muchly ₁₈
• phlegm ₁₇
• phloem ₁₅
• poshly ₁₄
• rashly ₁₁
• richly ₁₄
• schlep ₁₅
• schlub ₁₆
• shlepp ₁₅
• shleps ₁₂
• shlock ₁₆
• shlubs ₁₃
• shlump ₁₆
• uhlans ₁₁
• shlong ₁₀
• eathly ₁₂
• gashly ₁₃
• nighly ₁₃
• oughly ₁₃

There are 25 6-letter words containing hl in the well-known word game dictionary, 21 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 24 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 20 in the Words with Friends (WWF) dictionary.