There are a total of 25 3-letter words containing 'ar', and the number may vary in different dictionaries. You can specify the dictionary and order.

• arb ₆
• arc ₆
• are ₃
• arf ₆
• ark ₇
• arm ₆
• ars ₃
• art ₃
• bar ₆
• car ₆
• ear ₃
• far ₆
• gar ₅
• jar ₁₂
• lar ₄
• mar ₆
• oar ₃
• par ₆
• tar ₃
• var ₇
• war ₆
• yar ₅
• ard ₄
• ary ₆
• sar ₃

There are 25 3-letter words containing "ar" in the well-known word game dictionary, 22 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 25 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 22 in the Words with Friends (WWF) dictionary.