There are a total of 22 7-letter words containing 'vac', and the number may vary in different dictionaries. You can specify the dictionary and order.

• casevac ₁₇
• evacuee ₁₅
• medevac ₁₈
• medivac ₁₈
• privacy ₁₉
• vacancy ₂₀
• vacated ₁₅
• vacates ₁₄
• vaccina ₁₈
• vaccine ₁₈
• vacuity ₁₇
• vacuole ₁₆
• vacuous ₁₆
• vacuums ₁₉
• vivaces ₁₈
• airvacs ₁₂
• autovac ₁₂
• vacance ₁₄
• vacatur ₁₂
• vacking ₁₇
• vacuate ₁₂
• vacuist ₁₂

There are 22 7-letter words containing vac in the well-known word game dictionary, 15 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 20 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 15 in the Words with Friends (WWF) dictionary.