first-class
/'fə:st'klɑ:s/
Học thuậtThân thiện
Definition
- Adjective:
- Of the highest quality or standard; excellent: Used to describe something that is superior, outstanding, or among the best in its category.
- Relating to the best or most expensive category of accommodation or service: Often used in the context of travel (e.g., on ships, trains, airplanes) or mail.
Usage
- As an adjective, "first-class" is used before a noun to modify it.
- It can also be used after a linking verb like "be" or "seem."
- It is often hyphenated when used as an adjective before a noun.
Examples
- Adjective (Quality):
- She has a first-class mind and solved the complex problem easily.
- The restaurant offers first-class service and cuisine.
- Adjective (Travel/Service Category):
- We booked first-class tickets for the flight.
- This letter was sent via first-class mail.
Advanced Usage
- "First-class" as an adverb (informal): Meaning "very well" or "excellently."
- The team performed first-class during the competition.
- "First-class citizen" (computing/sociology): An entity treated as of primary importance, with full rights and privileges.
- In modern programming, functions are often first-class citizens.
Variants and Related Words
- First-rate (adj): Of the highest quality; excellent. (Synonymous with the quality sense of "first-class.")
- Top-tier (adj): Belonging to the highest level or rank.
- Premier (adj): First in importance, order, or position.
Synonyms
- Excellent
- Superior
- Top-notch
- Premium
- Outstanding
Antonyms
- Second-class
- Inferior
- Poor
- Substandard
Related Phrases
- First-class honours: The highest grade in a British university degree classification.
- She graduated with first-class honours in Physics.
- Travel first-class: To travel using the best and most expensive seating/service.
- On his retirement, he decided to travel first-class around the world.
Adjective
- very good; of the highest quality
- made an excellent speech
- the school has excellent teachers
- a first-class mind