The difference between Pavilion and Pinna

Pavilion as a noun:

An ornate tent.

Pavilion as a noun:

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

Pavilion as a noun:

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

Pavilion as a noun (cricket):

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

Pavilion as a noun:

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

Pavilion as a noun:

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

Pavilion as a noun (anatomy):

The cartiliginous part of the outer ear; auricle.

Pavilion as a noun (anatomy):

The fimbriated extremity of the Fallopian tube.

Pavilion as a noun (military):

A flag, ensign, or banner. A flag or ensign carried at the gaff of the mizzenmast.

Pavilion as a noun (heraldry):

A tent used as a bearing.

Pavilion as a noun:

A covering; a canopy; figuratively, the sky.

Pavilion as a verb (transitive):

To furnish with a pavilion.

Pavilion as a verb (transitive):

To put inside a pavilion.

Pavilion as a verb (transitive, figuratively):

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

Pinna as a noun (anatomy):

The visible part of the ear that resides outside of the head, the auricle; outer ear excluding the ear canal.

Pinna as a noun (botany):

A leaflet or primary segment of a pinnate compound leaf.

Pinna as a noun (zoology):

A feather, wing, fin, or other similar appendage.