top-notch UK US /ˌtɒpˈnɒtʃ/ US /ˌtɑːpˈnɑːtʃ/ adjective INFORMAL
► extremely good: »
top-notch scientists/lawyers/artists
»The state school system offers a top-notch education.
»The new conference centre has top-notch facilities.
Financial and business terms. 2012.