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 of usually three classes of travel accommodations
b
: a class of mail that comprises letters, postcards, or matter sealed against inspection
Synonyms
Adjective
- A-OK
- A1
- awesome
- bang-up
- banner
- beautiful
- blue-chip
- blue-ribbon
- boffo
- bonny [chiefly British]
- bonnie
- boss [slang]
- brag
- brave
- bully
- bumper
- capital
- choice
- classic
- cool [slang]
- corking
- crackerjack
- cracking
- dandy
- divine
- dope [slang]
- down [slang]
- dynamite
- excellent
- fab
- fabulous
- famous
- fantabulous [slang]
- fantastic
- fine
- first-rate
- first-string
- five-star
- four-star
- frontline
- gangbusters
- gangbuster
- gilt-edged
- gilt-edge
- gone [slang]
- grand
- great
- groovy
- heavenly
- high-class
- hot
- hype [slang]
- immense
- jim-dandy
- keen
- lovely
- marvelous
- marvellous
- mean
- neat
- nifty
- noble
- number one
- No. 1
- numero uno
- out-of-sight [slang]
- par excellence
- peachy
- peachy keen
- phat [slang]
- prime
- primo [slang]
- prize
- prizewinning
- quality
- radical [slang]
- righteous [slang]
- sensational
- slick
- splendid
- stellar
- sterling
- superb
- superior
- superlative
- supernal
- swell
- terrific
- tip-top
- top
- top-notch
- top-of-the-line
- top-shelf
- topflight
- topping [chiefly British]
- unsurpassed
- wizard [chiefly British]
- wonderful
Examples of first-class in a Sentence
Adjective
a first-class production of a classic American musical
Recent Examples on the Web
Tim Stelloh, NBC News, 4 Nov. 2024
The company has begun notifying those whose personal information may have been compromised via first-class mail.
—Lars Daniel, Forbes, 2 Nov. 2024
Megan Cerullo, CBS News, 19 Nov. 2024
Stagnation, of course, isn’t just rough on those in first class; turbulence is always worse at the back of the plane.
—Mia Galuppo, The Hollywood Reporter, 30 Oct. 2024
See all Example Sentences for first-class 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Adjective
Enraged, Garcia stole Lambert’s credit card and upgraded his airline ticket to first-class, Hightower said.
—Tim Stelloh, NBC News, 4 Nov. 2024
The company has begun notifying those whose personal information may have been compromised via first-class mail.
—Lars Daniel, Forbes, 2 Nov. 2024
Noun
There's a catch, however: the meals are only available to customers sitting in first class and on routes longer than 900 miles.
—Megan Cerullo, CBS News, 19 Nov. 2024
Stagnation, of course, isn’t just rough on those in first class; turbulence is always worse at the back of the plane.
—Mia Galuppo, The Hollywood Reporter, 30 Oct. 2024
See all Example Sentences for first-class
Dictionary Entries Near first-class
Cite this Entry
“First-class.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first-class. Accessed 26 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share