• 貿易ぼうえき — trade (esp. international)
• 自由貿易じゆうぼうえき — free trade
• 貿易会社ぼうえきがいしゃ — trading company
• 貿易赤字ぼうえきあかじ — trade deficit
• 貿易黒字ぼうえきくろじ — trade surplus
• 貿易港ぼうえきこう — trading port
• 貿易摩擦ぼうえきまさつ — trade friction

貿 combines 貝 (money/shell) with 卯 (phonetic), pointing to exchanging valuables. It chiefly appears in compounds about global commerce.