Former player in Canada

• A collection of things (goods or works of art etc.) for public display
• Show at a convention center
• Fairly large fair
• Brand of markers
• Olympic Stadium athlete
• New product show
• Spokane event of 1974
• Short industrial exhibit?
• Former Major League Baseball player from Montreal

Wikipedia Word definitions in Wikipedia
Expo , for three performers with shortwave receivers and a sound projectionist, is a composition by Karlheinz Stockhausen , written in 1969–70. It is Number 31 in the catalogue of the composer's works.