jack
/dʒæk/
noun
- A device used for lifting heavy objects, especially a vehicle, off the ground.
- The mechanic placed the jack under the frame of the truck.
- Always make sure the jack is on solid, level ground before lifting.
- He used a car jack to lift the tire off the ground.
- A playing card with a picture of a young man, ranking between the 10 and the queen.
- He placed the jack of spades on top of the pile.
- In many card games, the jack is worth 10 points.
- She drew a jack and a king in her poker hand.
- A connector used to plug in audio or electronic equipment, such as a headphone jack.
- Make sure the jack is fully inserted into the port.
- He plugged the cable into the audio jack on the speaker.
- The headphone jack on my phone is broken.
- A small, six-pointed metal object used in the game of jacks, or the game itself.
- She tossed the jack into the air and tried to pick up the others.
- The children played jacks on the sidewalk during recess.
- He won the game of jacks by catching all the pieces.
- A male donkey.
- A jack is often used to guard livestock because of its loud bray.
- The farmer bred his jack with a female horse to produce a mule.
- The jack stood in the field, braying at the sunrise.
- A flag flown on a ship, especially a small one at the bow, indicating nationality.
- The ship flew the Union Jack at its bow.
- The captain ordered the jack to be raised as they entered port.
- A naval jack is often a smaller version of the national flag.
verb
- To lift or raise something using a jack.
- They jacked the heavy crate onto the platform.
- She jacked the sofa to slide the rug underneath.
- He jacked up the car to change the tire.
- To increase or raise something, especially a price or amount, often suddenly or unfairly.
- The store jacked up the price of milk during the storm.
- They jacked the rent by 20 percent without warning.
- The company jacked up fees for late payments.
- To steal or take something, often by force or without permission.
- He got his phone jacked at the concert.
- Someone jacked his bike from the front yard.
- They tried to jack the car at gunpoint.
- To quit or abandon something, often used with 'in' or 'up'.
- He decided to jack in his job and travel the world.
- I'm going to jack it in and start fresh.
- She jacked up the project after the funding fell through.
Antonyms
adjective
- Tired of or bored with something; fed up (usually used in the phrase 'jack of').
- She's jack of doing all the work by herself.
- I'm jack of hearing the same excuses every day.
- He's jack of the constant delays.