1
: of or relating to first class
2
: of the highest quality
a first-class meal
first-class
adverb
: the first or highest group in a classification: such as
a
: the highest class of travel accommodations
b
: a class of mail that comprises letters, postcards, or matter sealed against inspection
Synonyms of first-class
Examples of first-class in a Sentence
Adjective
a first-class production of a classic American musical
Recent Examples on the Web
Leslie Josephs, CNBC, 2 Jan. 2026
Yes, mail — including first-class mail and packages — is delivered on New Year's Eve 2025, though your local post office may be operating on a limited schedule.
—Erica Marrison, PEOPLE, 31 Dec. 2025
Jason Ma, Fortune, 22 Dec. 2025
Fogwell dismissed stories of people being given upgrades to business or first class based on their looks or how they're dressed during her conversation with Travel + Leisure.
—Erin Clack, PEOPLE, 22 Dec. 2025
See All Example Sentences for first-class
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Adjective
The view into American Airlines first-class cabin on a Boeing 737.
—Leslie Josephs, CNBC, 2 Jan. 2026
Yes, mail — including first-class mail and packages — is delivered on New Year's Eve 2025, though your local post office may be operating on a limited schedule.
—Erica Marrison, PEOPLE, 31 Dec. 2025
Noun
As premium travel becomes an increasingly important part of the airline industry, a new carrier is launching that looks to offer an experience beyond first class but without the enormous cost of chartering a private jet.
—Jason Ma, Fortune, 22 Dec. 2025
Fogwell dismissed stories of people being given upgrades to business or first class based on their looks or how they're dressed during her conversation with Travel + Leisure.
—Erin Clack, PEOPLE, 22 Dec. 2025
See All Example Sentences for first-class
Cite this Entry
“First-class.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first-class. Accessed 4 Jan. 2026.
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