fast

adjective
UK: /fɑːst/
US: /fæst/

  1. Moving or capable of moving at high speed.

    1. The car is very fast. [ ] [ ]
    2. A cheetah is a very fast animal when it is hunting its prey. [ ] [ ]

  2. Done in a short time; quick.

    1. It was a fast game. [ ] [ ]
    2. The company is known for its fast and efficient customer service. [ ] [ ]

  3. Allowing little passage; firm.

    1. The door was fast shut. [ ] [ ]
    2. Make the ropes fast so the boat doesn't drift away during the storm. [ ] [ ]

Synonyms

rapid quick swift speedy
fast verb

  1. To move quickly.

    1. The dog can fast. [ ] [ ]
    2. The athletes trained to fast around the track during the competition. [ ] [ ]

  2. To go without food or certain foods for a period of time, especially for religious reasons.

    1. I will fast today. [ ] [ ]
    2. Many people choose to fast for religious or health reasons. [ ] [ ]
fast adverb

  1. Quickly or rapidly.

    1. He ran fast! [ ] [ ]
    2. She can type very fast, which makes her efficient. [ ] [ ]

  2. Firmly or securely.

    1. Hold on fast now. [ ] [ ]
    2. The ship was held fast by its anchors during the storm. [ ] [ ]
fast noun

  1. A period of time when you eat no food.

    1. It is a long fast. [ ] [ ]
    2. They decided to break their fast with a light meal. [ ] [ ]

Frequently Asked Questions

The word "fast" in English means: Moving or capable of moving at high speed., Done in a short time; quick., Allowing little passage; firm..

The phonetic transcription of "fast" is /fɑːst/ in British English and /fæst/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "fast": rapid, quick, swift, speedy.

Example usage of "fast": "The car is very fast.". More examples on the page.