There are a total of 160 10-letter words containing 'peri', and the number may vary in different dictionaries. You can specify the dictionary and order.

• asperities ₁₃
• calipering ₂₀
• chippering ₂₄
• choppering ₂₄
• experience ₂₄
• experiment ₂₄
• fripperies ₁₉
• hesperidia ₁₆
• hesperidin ₁₇
• hypericums ₂₄
• imperially ₂₀
• imperiling ₂₀
• imperilled ₁₉
• meperidine ₁₈
• paperiness ₁₇
• pauperised ₁₈
• pauperises ₁₇
• pauperisms ₂₀
• pauperized ₂₇
• pauperizes ₂₆
• pepperidge ₂₂
• periastron ₁₄
• pericardia ₁₇
• periclinal ₁₉
• pericrania ₁₇
• pericycles ₂₂
• pericyclic ₂₅
• peridermal ₁₈
• peridotite ₁₄
• perigynies ₁₈
• perigynous ₁₉
• perihelial ₁₇
• perihelion ₁₇
• perikaryal ₂₀
• perikaryon ₂₀
• perilously ₁₈
• perilymphs ₂₄
• perimeters ₁₆
• perimetric ₁₉
• perimysial ₁₉
• perimysium ₂₂
• perineural ₁₆
• perineuria ₁₅
• periodates ₁₄
• periodical ₁₈
• periodised ₁₅
• periodises ₁₄
• periodized ₂₄
• periodizes ₂₃
• periosteal ₁₄
• periosteum ₁₇
• peripeteia ₁₆
• peripeties ₁₆
• peripheral ₁₉
• periphytic ₂₃
• periphyton ₂₁
• periplasts ₁₇
• peripteral ₁₇
• periscopes ₁₉
• periscopic ₂₂
• perishable ₁₉
• perisperms ₁₉
• peristomes ₁₆
• peristyles ₁₆
• perithecia ₁₈
• peritoneal ₁₅
• peritoneum ₁₈
• periwigged ₂₁
• periwinkle ₂₂
• piperidine ₁₈
• prospering ₁₉
• prosperity ₁₈
• puerperium ₂₁
• repapering ₁₉
• scampering ₂₂
• scarpering ₁₉
• scuppering ₂₃
• skippering ₂₃
• slipperier ₁₇
• slipperily ₂₀
• slippering ₂₀
• stoppering ₁₉
• subperiods ₁₈
• superiorly ₁₇
• trumperies ₁₇
• whimpering ₂₄
• whispering ₂₁
• blimperies ₁₆
• copperiest ₁₆
• hypericins ₂₀
• perimorphs ₁₉
• peripetias ₁₄
• periplasms ₁₆
• peritricha ₁₇
• peritrichs ₁₇
• aperitives ₁₅
• caperingly ₁₈
• clampering ₁₇
• clappering ₁₇
• cooperings ₁₅
• copperings ₁₇
• diaperings ₁₄
• emperished ₁₈
• emperishes ₁₇
• emperising ₁₅
• emperizing ₂₄
• flapperish ₂₀
• jasperised ₂₀
• jasperises ₁₉
• jasperized ₂₉
• jasperizes ₂₈
• pepperiest ₁₆
• pepperings ₁₇
• periblasts ₁₄
• pericarpic ₁₈
• pericenter ₁₄
• pericentre ₁₄
• periclases ₁₄
• periclines ₁₄
• periculous ₁₄
• peridermic ₁₇
• peridesmia ₁₅
• peridinian ₁₃
• peridinium ₁₅
• peridromes ₁₅
• periegeses ₁₃
• periegesis ₁₃
• perigonial ₁₃
• perigonium ₁₅
• perimetral ₁₄
• perinaeums ₁₄
• periodides ₁₄
• peripetian ₁₄
• peripheric ₁₉
• periphonic ₁₉
• periphrase ₁₇
• peripluses ₁₄
• periprocts ₁₆
• perisarcal ₁₄
• periscians ₁₄
• perishably ₂₀
• peristomal ₁₄
• peristylar ₁₅
• peritectic ₁₆
• peritonaea ₁₂
• peritracks ₁₈
• popperings ₁₇
• simperings ₁₅
• snappering ₁₅
• tamperings ₁₅
• taperingly ₁₆
• temperings ₁₅
• tripperish ₁₇
• unpapering ₁₅
• unperilous ₁₂
• unperished ₁₆
• viperiform ₂₀
• viperishly ₂₁
• wrappering ₁₈
• zooperists ₂₁

There are 160 10-letter words containing peri in the well-known word game dictionary, 81 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 152 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 87 in the Words with Friends (WWF) dictionary.