roller
/'roulə/
Học thuậtThân thiện
Definition
- Noun:
- A cylindrical device that rotates or revolves: A mechanical object, often a tube or cylinder, designed to roll, rotate, or apply pressure by turning.
- A long, swelling wave: A large, heavy wave in the sea that moves forward with a rolling motion.
- A type of bird: A bird, such as a species of the Coraciidae family (like the European Roller) known for aerial acrobatics, or a breed of domestic pigeon that performs tumbling rolls in flight.
- A hair curler: A cylindrical device around which hair is wound to create curls.
- A ground ball in baseball: A batted ball in baseball or softball that travels along the ground.
Examples of Usage
- Noun (Cylindrical Device):
- They used a heavy roller to flatten the asphalt on the road.
- The printer's ink roller needs to be cleaned.
- Noun (Wave):
- The powerful rollers crashed against the cliffs during the storm.
- Noun (Bird):
- We saw a brightly colored European roller perched on the fence.
- His hobby is breeding and flying roller pigeons.
- Noun (Hair Curler):
- She put her hair in rollers before going to bed.
- Noun (Baseball):
- The batter hit a slow roller to the shortstop.
Advanced Usage
- "On a roller": Experiencing a period of consistent success or momentum, often in sports or business.
- The team is on a roller, having won ten games in a row.
- Technical/Industrial Context: Refers to specific parts in machinery, like conveyor belt rollers, paint rollers, or the rollers in a garage door mechanism.
Variants and Related Words
- Rollerblade®: A brand name for inline skates, often used generically.
- Rollercoaster: A type of amusement ride with sharp curves and steep slopes; metaphorically, a situation with alternating periods of excitement and difficulty.
- Roller skate: A shoe or boot with wheels attached for gliding over a surface.
- Rollerball: A type of pen that uses a rolling ball to dispense ink; also a sport.
- Roller bandage: A long strip of gauze wound into a cylindrical roll for medical use.
Synonyms
- Cylinder: A solid or hollow figure with circular ends and straight sides.
- Wave: A long body of water curling into an arched form.
- Curler: A device for curling hair.
- Grounder: A batted ball in baseball that rolls or bounces along the ground.
Related Phrasal Verbs/Compounds
(Note: "Roller" itself is not typically used in phrasal verbs. The related verb "roll" forms phrasal verbs.) - Roller derby: A contact sport played on roller skates. - Roller mill: A machine for grinding or crushing using cylindrical rollers.
Related Idioms
- Like a roller: Moving or progressing smoothly and steadily.
- The project has been moving along like a roller since the new manager took over.
- Between the roller and the hard place: A less common variant of "between a rock and a hard place," meaning in a difficult situation with two equally unpleasant choices.
Noun
- pigeon that executes backward somersaults in flight or on the ground
- Old World bird that tumbles or rolls in flight; related to kingfishers
- a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
- a woman with her head full of curlers is not a pretty sight
- a cylinder that revolves
- a small wheel without spokes (as on a roller skate)
- a long heavy sea wave as it advances towards the shore
- a grounder that rolls along the infield