First class
First class noun - Mail that includes letters and postcards and packages sealed against inspection.
Groovy and first class are semantically related. in fine topic. In some cases you can use "Groovy" instead an adjective phrase "First class", when it comes to topics like amazing.
Groovy
Groovy adjective - Of the very best kind.
First class and groovy are semantically related. Sometimes you can replace phrase "First class" with "Groovy", this terms are similar.
Mutual synonyms
Both terms in one sentence
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Younger and Hipper: X-Men: First Class explores the younger (and more groovy) versions of Professor X, Magneto, Mystique and Beast with new actors playing the familiar roles.
Source: Film / X-Men Film Series
Cite this Source
Groovy and First class. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/first_class/groovy
First class & Groovy. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/first_class/groovy>.
Groovy or First class. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/first_class/groovy.
Google Ngram Viewer shows how "first class" and "groovy" have occurred on timeline