An ornate tent.

A light roofed structure used as a shelter in a public place.

A structure, sometimes temporary, erected to house exhibits at a fair, etc.

(cricket) The building where the players change clothes, wait to bat, and eat their meals.

A detached or semi-detached building at a hospital or other building complex.

The lower surface of a brilliant-cut gemstone, lying between the girdle and collet.

(anatomy) The cartiliginous part of the outer ear; auricle.

(anatomy) The fimbriated extremity of the Fallopian tube.

(military) A pavilion is a flag or ensign carried at the gaff of the mizzenmast.

(heraldry) An ornate tent, used either as a charge or bearing, or surrounding a shield as or atop the mantling.

A covering; a canopy; figuratively, the sky.

(transitive) To furnish with a pavilion.

(transitive) To put inside a pavilion.

(transitive, figurative) To enclose or surround (after Robert Grant's hymn line "pavilioned in splendour").