Fill out

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Meaning 1 of 3
Definition

Become fuller (muscles or body)

Example sentence
He was a skinny kid, but he filled out as a teenager.
Real video usage
Three clips showing this meaning in natural speech.
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Clip 2
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Clip 3
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Common collocations
Natural word pairings to memorize.

fill out your clothes

fill out your frame

fill out as you get older

fill out with age

fill out after college

fill out over the years

Separable usage
Can the object split the verb? Compare correct vs incorrect.

She filled out after starting swimming training. ✅ (Correct)
She filled after starting swimming training out. ❌ (Incorrect)

Meaning 1 of 3
Definition

To complete all required information on a form

Example sentence
You need to fill out the form before you see the doctor
Real video usage
Three clips showing this meaning in natural speech.
Clip 1
⏱ Timestamp
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Clip 2
⏱ Timestamp
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Clip 3
⏱ Timestamp
Open on YouTube
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Common collocations
Natural word pairings to memorize.

Common pattern: fill out + form/document

fill out an application

fill out a form

fill out paperwork

fill out a questionnaire

fill out a survey

fill out a registration form

Separable usage
Can the object split the verb? Compare correct vs incorrect.

She filled out the form. ✅ (Correct)
She filled the form out. ✅ (Correct)