roll · verb /roʊl/Full view
Nouns: roll, roller
Verbs: roll, unroll
roll (sth) across/around/over, etc.
B2 to move somewhere by turning in a circular direction, or to make something move this way
Dictionary examples:

The ball rolled between his legs.

She rolled over onto her side.

The vase rolled off the table and smashed.

Learner example:

Paul broke his leg by rolling down the mounta[i]n. (First Certificate in English; B2; Korean)

roll
B2 T to turn something around itself to make the shape of a ball or tube
Dictionary examples:

He was rolling a cigarette.

He rolled the clay into a ball in his hands.

As I got closer, the hedgehog rolled itself up into a ball.

roll down/in/off, etc.
B2 to move somewhere smoothly
Dictionary examples:

The driver rolled down his car window.

Tears rolled down my face.

Learner example:

By this time, the rest of us were laughing so [hard that] tears were rolling down our cheeks. (First Certificate in English; B2; Swedish)

roll your eyes
C2 to move your eyes in a circle to show surprise or disapproval
Dictionary example:

When I asked her when she thought the building work would be finished, she just rolled her eyes.

Learner example:

This attitude is obvious when, for instance, s[ales] assistan[ts] show no patience for the slower reaction of elderl[y] [people]; when nobody offers a seat to an older person in [an] overcrowded t[rain]; when we roll our eyes about older people's desire for quiet, etc. (Certificate of Proficiency in English; C2; German)

get/start the ball rolling
C2 to make something begin or happen
Dictionary example:

We have to get the ball rolling on this project soon.

roll · noun C /roʊl/
Nouns: roll, roller
Verbs: roll, unroll
roll (BREAD)
B1 a small loaf of bread for one person
Dictionary example:

I had a roll with my soup.

Learner example:

We eat ham, cheese, butter and paprika, with [a] roll or bread. (Skills for Life (Entry 2); A2; Hungarian)

roll (TUBE)
B2 a piece of plastic, paper, cloth, etc. that is rolled into the shape of a tube
Dictionary example:

a roll of carpet

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