Baseball team that became the Nationals

• Trade shows, for short
• Quebec major leaguers
• Former Montreal team
• Montreal baseballers, 1969-2004
• Team that played in Montreal's Olympic Stadium
• Shows with exhibit booths
• Bygone Montreal ball club
• Olympic Stadium squad, a while back
• They were relocated and became the Nationals

Wiktionary Word definitions in Wiktionary
n. (plural of expo English)