The Prefix Bi- : Grow Your Vocabulary with Simple English Videos

11,932 views ・ 2016-10-20

Simple English Videos


Please double-click on the English subtitles below to play the video.

00:05
What does the bi- in bicycle mean?
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00:10
Bi means two.
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00:12
A bicycle has two wheels.
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00:14
What do we call a plane that has two sets of wings?
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00:19
A biplane Next one.
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00:22
How do we describe someone that speaks two languages?
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00:28
Hello.
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00:30
Bon jour.
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00:35
Bilingual.
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00:38
Next one.
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00:39
Bigamy.
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00:41
Bigamy is a crime.
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00:42
What crime is it?
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00:45
Bigamy is being married to two people at the same time.
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And we call a person who commits bigamy a bigamist.
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00:56
OK, what do you think binary means?
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01:01
It’s a system of numbers and it uses only zeros and ones, like the numbers used in computers
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01:10
And next one, what do we call a creature with two feet?
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01:18
Biped.
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01:22
As well as two, bi- can also mean twice, so if you hold meetings bi-weekly, you hold them
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01:29
twice a week.
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01:31
What if you hold them twice a year?
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01:35
Do you hold them biannually or biennially?
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01:39
It’s biannually.
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01:42
Twice a year.
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01:43
A biennial event happens once every two years.
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01:48
Can you think of any more bi- words?
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Tell us in the comments.
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And click here for more prefixes and suffixes.
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About this website

This site will introduce you to YouTube videos that are useful for learning English. You will see English lessons taught by top-notch teachers from around the world. Double-click on the English subtitles displayed on each video page to play the video from there. The subtitles scroll in sync with the video playback. If you have any comments or requests, please contact us using this contact form.

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