There are a total of 35 4-letter words containing 'ia', and the number may vary in different dictionaries. You can specify the dictionary and order.

• alia ₅
• amia ₇
• aria ₄
• bias ₇
• chia ₉
• ciao ₇
• dial ₆
• fiar ₇
• fiat ₇
• glia ₇
• huia ₇
• iamb ₁₀
• ilia ₅
• inia ₅
• ixia ₁₁
• jiao ₁₃
• liar ₅
• lias ₅
• obia ₇
• ohia ₆
• pial ₈
• pian ₈
• pias ₇
• raia ₄
• riad ₅
• rial ₅
• rias ₄
• sial ₅
• tian ₅
• vial ₉
• aias ₄
• kuia ₈
• tiar ₄
• viae ₇
• vias ₇

There are 35 4-letter words containing ia in the well-known word game dictionary, 27 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 32 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 30 in the Words with Friends (WWF) dictionary.