There are a total of 63 5-letter words containing 'ph', and the number may vary in different dictionaries. You can specify the dictionary and order.

• aleph ₁₁
• alpha ₁₁
• aphid ₁₁
• aphis ₁₀
• bumph ₁₇
• caphs ₁₃
• delph ₁₂
• ephah ₁₂
• ephas ₁₀
• ephod ₁₁
• ephor ₁₀
• glyph ₁₅
• graph ₁₂
• humph ₁₆
• hypha ₁₄
• hyphy ₁₆
• kaphs ₁₄
• khaph ₁₆
• kophs ₁₄
• lymph ₁₆
• morph ₁₃
• nymph ₁₆
• oomph ₁₃
• ouphe ₁₁
• ouphs ₁₁
• phage ₁₂
• phare ₁₀
• phase ₁₀
• phial ₁₁
• phlox ₁₈
• phone ₁₁
• phono ₁₁
• phons ₁₁
• phony ₁₃
• photo ₁₀
• phots ₁₀
• phpht ₁₅
• phuts ₁₁
• phyla ₁₃
• phyle ₁₃
• qophs ₁₉
• ralph ₁₁
• raphe ₁₀
• sophs ₁₀
• sophy ₁₂
• staph ₁₀
• sumph ₁₄
• sylph ₁₃
• syphs ₁₂
• tophe ₁₀
• tophi ₁₀
• tophs ₁₀
• phish ₁₃
• phizz ₂₈
• umphs ₁₂
• gulph ₁₁
• phang ₁₁
• pheer ₁₀
• phene ₁₀
• pheon ₁₀
• phese ₁₀
• phoca ₁₂
• phohs ₁₃

There are 63 5-letter words containing ph in the well-known word game dictionary, 51 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 59 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 52 in the Words with Friends (WWF) dictionary.