The term 'Arabia Weight' refers to a traditional system of weights and measures used in the Middle East. The three crossword solutions, Yemen (5 letters), OMAN (4 letters), and SAUDI (5 letters), all refer to countries in the Arabian Peninsula. Yemen is located in the southwestern corner of the peninsula, OMAN is located in the southeastern corner, and SAUDI Arabia is located in the center. All three countries use the Arabia Weight system for measuring goods and services.