pavilion (Noun) — Large and often sumptuous tent.
pavilion (Noun) — A roofed shelter in a garden or public park, often ornamental.
pavilion (Noun) — A building where sports players (esp. cricketers) change or have refreshments.
pavilion (Noun) — A detached or partly-detached part of a building complex.
pavilion (Noun) — A display tent or other structure used to show exhibits at a fair, etc..