There are a total of 107 7-letter words containing 'yr', and the number may vary in different dictionaries. You can specify the dictionary and order.

• apyrase ₁₂
• butyral ₁₄
• butyric ₁₆
• butyrin ₁₄
• butyryl ₁₆
• byrling ₁₆
• byrnies ₁₃
• byroads ₁₃
• chyrons ₁₅
• dayroom ₁₃
• ephyrae ₁₄
• gyrally ₁₅
• gyrases ₁₁
• gyrated ₁₂
• gyrates ₁₁
• gyrator ₁₁
• gyrenes ₁₂
• gyronny ₁₅
• hayrack ₁₈
• hayrick ₁₈
• hayride ₁₂
• hyraces ₁₄
• hyraxes ₁₈
• joyride ₁₉
• joyrode ₁₉
• keyring ₁₆
• lyrated ₁₁
• lyrical ₁₄
• lyrisms ₁₃
• lyrists ₁₀
• martyrs ₁₂
• martyry ₁₄
• myriads ₁₃
• myricas ₁₅
• myrrhic ₁₇
• myrtles ₁₃
• palmyra ₁₆
• papyral ₁₆
• papyrus ₁₆
• payroll ₁₄
• pyralid ₁₄
• pyramid ₁₆
• pyrenes ₁₃
• pyretic ₁₅
• pyrexia ₁₉
• pyrexic ₂₂
• pyridic ₁₆
• pyrites ₁₂
• pyritic ₁₅
• pyrogen ₁₅
• pyrolas ₁₃
• pyrones ₁₃
• pyropes ₁₅
• pyrosis ₁₂
• pyrrhic ₁₇
• pyrrole ₁₃
• pyrrols ₁₃
• pyruvic ₂₀
• satyric ₁₂
• satyrid ₁₀
• styrene ₁₀
• syrette ₉
• syringa ₁₂
• syringe ₁₂
• syrphid ₁₅
• syrtaki ₁₃
• thyroid ₁₂
• thyrses ₁₁
• thyrsus ₁₂
• tyranny ₁₃
• tyrants ₁₀
• tyronic ₁₃
• valkyrs ₁₈
• zephyrs ₂₃
• lyricon ₁₂
• pyrexes ₁₉
• syruped ₁₃
• agyrias ₁₁
• anyroad ₁₁
• argyria ₁₁
• byreman ₁₄
• byremen ₁₄
• byrlady ₁₆
• byrlaws ₁₅
• byrooms ₁₄
• empayre ₁₄
• gyrocar ₁₃
• gyronic ₁₃
• gyruses ₁₁
• indyref ₁₄
• myrbane ₁₄
• myringa ₁₃
• myrrhol ₁₅
• oneyres ₁₀
• outhyre ₁₃
• pyralis ₁₂
• pyramis ₁₄
• pyropus ₁₄
• pyroses ₁₂
• satyral ₁₀
• satyras ₁₀
• skyring ₁₅
• stayres ₁₀
• styring ₁₁
• tyraned ₁₁
• tyranne ₁₀
• tyrones ₁₀

There are 107 7-letter words containing yr in the well-known word game dictionary, 71 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 105 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 74 in the Words with Friends (WWF) dictionary.