roller

• اسم يشير إلى أسطوانة أو عجلة تدور، ويُستخدم في سياقات مختلفة مثل الكرة الأرضية في البيسبول، والموجة البحرية الطويلة، والعجلة الصغيرة في حذاء التزلج، والأسطوانة الميكانيكية لتجعيد الشعر، أو نوع من الطيور أو الحمام المعروف بالشقلبة أو التدحرج في الطيران.

A noun referring to a cylinder or wheel that revolves, used in various contexts such as a grounder in baseball, a long sea wave, a small wheel on a skate, a mechanical cylinder for hair curling, or a type of bird or pigeon known for tumbling or rolling in flight.

1. Rolling grounderB2informalamericansport

   A baseball hit that rolls along the infield ground.

   كرة أرضية متدحرجة

   • The batter hit a slow roller to the shortstop.
   • He fielded the roller cleanly and threw to first.
   • A tricky roller bounced over the pitcher's mound.

   المرادفاتdribblerground ballgrounder

2. Large ocean waveB1formal

   A long, heavy sea wave that rolls steadily towards the shore.

   موجة محيطية كبيرة

   • The surfers waited for a big roller to ride.
   • A massive roller crashed onto the beach.
   • The ship was lifted by a powerful roller.

   المرادفاتbillowbreakercomberswell

3. Small wheel without spokesA2formalsport

   A small, solid wheel used in devices like roller skates or inline skates.

   بكرة صغيرة

   • The roller skate has four rollers on the bottom.
   • He replaced the worn-out rollers on his skates.
   • The roller on the skateboard needs to be tightened.

4. Revolving cylinderB1formaltechnical

   A cylindrical object that rotates, often used in machinery or tools.

   أسطوانة دوارة

   • The paint roller made the job much faster.
   • The conveyor belt runs on a series of rollers.
   • The printer's roller needs to be cleaned regularly.

   المرادفاتbarrelbobbincylinderdrumpulleyreelspool

5. Hair curlerA2informal

   A cylindrical tube used to curl hair by winding strands around it.

   بكرة تصفيف الشعر

   • She put rollers in her hair before going to bed.
   • He used hot rollers to create soft curls.
   • The hair roller set came in different sizes.

   المرادفاتcurlerhair curler

6. Roller birdC1formalscientific

   A type of Old World bird known for tumbling or rolling in flight, related to kingfishers.

   الشرقرق

   • The roller bird performed an acrobatic display in the sky.
   • We spotted a colorful roller perched on a branch.
   • Rollers are known for their distinctive rolling flight pattern.

7. Tumbling pigeonC1informalscientific

   A breed of pigeon that performs backward somersaults in flight or on the ground.

   الحمام القلاب

   • The roller pigeon tumbled gracefully in mid-air.
   • He breeds roller pigeons for their unique flying tricks.
   • A roller pigeon can execute multiple somersaults in a row.

   المرادفاتtumbler