There are a total of 177 6-letter words containing 'ph', and the number may vary in different dictionaries. You can specify the dictionary and order.

• alephs ₁₂
• alphas ₁₂
• alphyl ₁₅
• aphids ₁₂
• aphony ₁₄
• aphtha ₁₃
• bumphs ₁₈
• caliph ₁₅
• ceriph ₁₄
• cipher ₁₄
• cyphel ₁₇
• cypher ₁₆
• daphne ₁₃
• ephahs ₁₃
• ephebe ₁₄
• ephebi ₁₄
• ephods ₁₂
• ephori ₁₁
• ephors ₁₁
• ephyra ₁₃
• furphy ₁₇
• glyphs ₁₆
• gonoph ₁₄
• gopher ₁₃
• graphs ₁₃
• hiphop ₁₆
• humphs ₁₇
• hyphae ₁₅
• hyphal ₁₆
• hyphen ₁₆
• imphee ₁₄
• joseph ₂₀
• kaliph ₁₆
• khaphs ₁₇
• klepht ₁₆
• lymphs ₁₇
• morpho ₁₄
• morphs ₁₄
• murphy ₁₇
• nephew ₁₅
• nympha ₁₇
• nympho ₁₇
• nymphs ₁₇
• oomphs ₁₄
• ophite ₁₁
• orphan ₁₂
• orphic ₁₄
• ouphes ₁₂
• paraph ₁₄
• phages ₁₃
• phalli ₁₃
• pharma ₁₄
• pharos ₁₁
• phased ₁₂
• phaser ₁₁
• phases ₁₁
• phasic ₁₄
• phasis ₁₁
• phasor ₁₁
• phatic ₁₄
• phenix ₁₉
• phenol ₁₃
• phenom ₁₅
• phenyl ₁₅
• phials ₁₂
• phizes ₂₀
• phlegm ₁₇
• phloem ₁₅
• phobia ₁₄
• phobic ₁₇
• phoebe ₁₄
• pholas ₁₂
• phonal ₁₃
• phoned ₁₃
• phones ₁₂
• phoney ₁₄
• phonic ₁₅
• phonon ₁₃
• phonos ₁₂
• phooey ₁₃
• phossy ₁₃
• photic ₁₄
• photog ₁₃
• photon ₁₂
• photos ₁₁
• phrase ₁₁
• phreak ₁₅
• phwoah ₁₆
• phwoar ₁₄
• phylae ₁₄
• phylar ₁₄
• phylic ₁₇
• phyllo ₁₅
• phylon ₁₅
• phylum ₁₈
• physed ₁₄
• physes ₁₃
• physic ₁₆
• physio ₁₃
• physis ₁₃
• phytol ₁₄
• phyton ₁₄
• ralphs ₁₂
• raphae ₁₁
• raphes ₁₁
• raphia ₁₁
• raphis ₁₁
• rhaphe ₁₃
• scarph ₁₄
• scyphi ₁₆
• seraph ₁₁
• siphon ₁₂
• sphene ₁₂
• sphere ₁₁
• sphery ₁₃
• sphinx ₁₉
• sphynx ₂₁
• staphs ₁₁
• sulpha ₁₃
• sumphs ₁₅
• sylphs ₁₄
• sylphy ₁₆
• sypher ₁₃
• syphon ₁₄
• tephra ₁₁
• teraph ₁₁
• tophat ₁₁
• tophes ₁₁
• tophus ₁₂
• trophy ₁₃
• typhon ₁₄
• typhus ₁₄
• uphaul ₁₄
• upheap ₁₅
• upheld ₁₄
• uphill ₁₄
• uphold ₁₄
• uphove ₁₆
• uphroe ₁₂
• woomph ₁₇
• zephyr ₂₂
• phoner ₁₁
• phytin ₁₄
• delphs ₁₂
• euphon ₁₁
• grumph ₁₄
• gulphs ₁₂
• kephir ₁₅
• phaeic ₁₃
• phangs ₁₂
• phares ₁₁
• pheere ₁₁
• pheers ₁₁
• pheese ₁₁
• pheeze ₂₀
• phenes ₁₁
• phenic ₁₃
• pheons ₁₁
• phesed ₁₂
• pheses ₁₁
• phizog ₂₁
• phocae ₁₃
• phocas ₁₃
• phrasy ₁₄
• sephen ₁₁
• seriph ₁₁
• sphaer ₁₁
• sphear ₁₁
• trophi ₁₁
• tumphy ₁₆
• uphand ₁₂
• uphang ₁₂
• uphaud ₁₂
• uphild ₁₂
• uphung ₁₂
• uphurl ₁₁
• yarpha ₁₄

There are 177 6-letter words containing ph in the well-known word game dictionary, 130 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 168 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 141 in the Words with Friends (WWF) dictionary.