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• second class
  second class

  noun

  the class of travel accommodations, as on a train, that are less costly and luxurious than first class but are more costly and luxurious than third class.
• second-class
  second-class

  adjective

  of a secondary class or quality.

second class

¹ American  

noun

• second classes
  plural

1. the class of travel accommodations, as on a train, that are less costly and luxurious than first class but are more costly and luxurious than third class.

2. (in the U.S. Postal Service) the class of mail consisting of newspapers and periodicals not sealed against postal inspection.

3. the second of three honors degrees conferred by a British university.

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second-class ² American  

[sek-uhnd-klas, -klahs] / ˈsɛk əndˈklæs, -ˈklɑs /

adjective

1. of a secondary class or quality.

2. second-rate; inferior.

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adverb

1. by second-class mail or passenger accommodations.

   to travel second-class.

second class British  

noun

1. the class or grade next in value, quality, etc, to the first

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adjective

1. of the class or grade next to the best in quality, etc

2. shoddy or inferior

3. of or denoting the class of accommodation in a hotel or on a train, etc, lower in quality and price than first class

4. 1. (in Britain) of or relating to mail that is processed more slowly than first-class mail

   2. (in the US and Canada) of or relating to mail that consists mainly of newspapers, etc

5. education See second 1

adverb

1. by second-class mail, transport, etc

second class Idioms  

1. Inferior; see second best .

2. Travel accommodations ranking below the highest or first class, as in Traveling second class on European trains is not only cheaper but gives you more contact with local people . [c. 1840]

3. In the United States and Canada, a category of mail consisting of periodicals and newspapers. [c. 1870]

4. second-class citizen . An individual regarded or treated as inferior to others in status or rights, an underprivileged person. For example, In many countries women still are considered second-class citizens . This term uses second class in the sense of “inferior.” [c. 1940]

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Other Word Forms

Noun Inflected Forms

• second classes
  plural

Etymology

Origin of second class¹

First recorded in 1830–40

Origin of second-class²

First recorded in 1830–40

Example Sentences

See Examples For:

second class second-class

Meanwhile, only 90.2% of second class letters were delivered within three working days against a target of 98.5%.

From BBC ● May 29, 2026

A first class stamp now costs £1.80 - an increase of 10p - while a second class letter has risen by 4p to 91p.

From BBC ● Apr. 7, 2026

“He thinks it’s really important that the authors of the 14th Amendment came in and granted citizenship on this principle that there’s no second class of people born in this country.”

From The Wall Street Journal ● Mar. 29, 2026

In December 2024, it was fined £10.5m by the regulator Ofcom for failing to meet delivery targets for first and second class mail.

From BBC ● Apr. 13, 2025

Moss caught Kaisha in the hallways between his first and second class.

From "Anger Is a Gift" by Mark Oshiro

The postal service is also pushing through plans to scrap Saturday delivery of second-class post.

From BBC ● Apr. 21, 2026

For much of its history printmaking has been relegated to second-class citizenship, with works that are viewed as less than equal to one-offs in other media.

From The Wall Street Journal ● Apr. 10, 2026

We are fortunate to have warriors like Crenshaw who refuse to accept second-class status.

From Los Angeles Times ● Jan. 30, 2026

Soon it came to mean tawdry and second-class goods.

From The Wall Street Journal ● Dec. 18, 2025

He had a second-class sleeper in the seventh bogie, behind the air-conditioned coach.

From "The Namesake" by Jhumpa Lahiri