Certified and First class

Certified adjective - Being exactly as appears or as claimed.

First class and certified are semantically related In some cases you can replace phrase "First class" with "Certified", this terms are similar.

Nearby Words: certify, certification, certifiable, certifying

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

Certified and first class are semantically related in superior topic. Sometimes you can use "Certified" instead an adjective phrase "First class", if it concerns topics such as excellent.