topline

Noun

 * 1) The upper curvature of a horse's or dog's withers, back, and loin.
 * 2)  Top billing.
 * 3) The edge that runs along the top of the opening of a shoe.
 * 1) The edge that runs along the top of the opening of a shoe.
 * 1) The edge that runs along the top of the opening of a shoe.

Verb

 * 1)  To bill (a performer) as the primary entertainer in a production.
 * 2)  To be billed as the primary entertainer in (a production).
 * 3) * Variety
 * [Whitney] Houston's success in music led her to topline the features "Waiting to Exhale," "The Preacher's Wife" and the telefilm "Cinderella."
 * [Whitney] Houston's success in music led her to topline the features "Waiting to Exhale," "The Preacher's Wife" and the telefilm "Cinderella."