Pronunciation: (ek"spur-tēz'), [key]
1. expert skill or knowledge; expertness; know-how: business expertise.
2. a written opinion by an expert, as concerning the authenticity or value of a work of art, manuscript, etc.
Pronunciation: (ek'spur-tīz"), [key]
—v.t., v.i., -ised, -ising. Chiefly Brit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.