First-string and Introductory

First-string adjective - Of the very best kind.

Introductory and first-string are semantically related. In some cases you can use "Introductory" instead an adjective phrase "First-string".

Introductory adjective - Coming before the main part or item usually to introduce or prepare for what follows.

First-string and introductory are semantically related. Sometimes you can use "First-string" instead an adjective "Introductory".

Nearby Word: introduction