Definition of class A in English:

class A

adjective

informal
  • Of the highest standard, quality, or rank; outstanding, matchless. Also occasionally as adverb Compare "first class", "class".

Origin

Early 20th century; earliest use found in The Washington Post. From class A.

Pronunciation

class A

/klɑːs ˈeɪ//klas ˈeɪ/