Vocabulary: Word Formation & Morphology (B2) - Lesson 1: Wider Range of Prefixes

Vocab: Word Formation B2
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Advanced Prefixes

បុព្វបទកម្រិតខ្ពស់ (B2)

Expand your vocabulary exponentially by mastering word-building blocks!

ពង្រីកវាក្យសព្ទរបស់អ្នកយ៉ាងឆាប់រហ័ស ដោយការស្វែងយល់ពីបុព្វបទ (អក្សរដែលនៅខាងដើមពាក្យ)!
block

Negative (il/ir/im) block

បុព្វបទបដិសេធ (មានន័យថា "មិន")
Irresponsible Not thinking about the results of your actions. ខ្វះការទទួលខុសត្រូវ
Irrational Not based on clear thought or reason. គ្មានហេតុផលត្រឹមត្រូវ
Illegal Against the law. ខុសច្បាប់
Immature Behaving like a much younger person. មិនទាន់ចាស់ទុំ (កូនក្មេង)
hourglass_empty

Time & Order hourglass_empty

ពេលវេលា និងលំដាប់ (មុន, ក្រោយ, អតីត)
Prehistoric Before written history. សម័យមុនប្រវត្តិសាស្ត្រ
Pre-existing Existing before a particular time. ដែលមានស្រាប់ពីមុន
Postpone Delay to a later time. ពន្យារពេល
Ex-president A former president. អតីតប្រធានាធិបតី
trending_up

Degree & Limits trending_up

កម្រិតទំហំ (លើស, ខ្វះ, ឈ្នះ)
Overestimate Guess too high a value. វាយតម្លៃខ្ពស់ពេក
Underpaid Paid too little for the work done. ទទួលបានប្រាក់ខែទាបជាងការងារ
Outnumber Be larger in number than another group. មានចំនួនច្រើនជាងគូប្រកួត
Outsmart Defeat someone by being more clever. ឆ្លាតជាង / ប្រើល្បិចឈ្នះ
handshake

Attitude handshake

អាកប្បកិរិយា (គាំទ្រ, ប្រឆាំង, រួមគ្នា)
Pro-democracy Supporting democracy. គាំទ្រលទ្ធិប្រជាធិបតេយ្យ
Anti-social Avoiding the company of others. មិនចូលចិត្តប្រាស្រ័យទាក់ទងជាមួយគេ
Co-author A joint author of a book. សហអ្នកនិពន្ធ (និពន្ធរួមគ្នា)
Cooperate Work together towards a common end. សហការគ្នា
warning The "In-" Trap!

"In-" doesn't ALWAYS mean "Not"!

(កុំច្រឡំ! ពាក្យខ្លះប្រើបុព្វបទ "in" ប៉ុន្តែអត្ថន័យវាផ្ទុយពីអ្វីដែលយើងគិត!)
Invaluable ≠ គ្មានតម្លៃ
It means EXTREMELY valuable! (មានតម្លៃកាត់ថ្លៃមិនបាន)
Inflammable ≠ មិនងាយឆេះ
It means it CAN catch fire easily. (ងាយឆេះខ្លាំង)

Quick Check bolt

ការត្រួតពិនិត្យរហ័ស
Prefix Selection
Which prefix is used with "logical" to mean "not logical"?
(តើបុព្វបទមួយណាដែលធ្វើឲ្យពាក្យ "logical" មានន័យបដិសេធ?)
Definition Match
If our army ___ the enemy, it means we have more soldiers than them.
(បើយើងមានកងទ័ពច្រើនជាងសត្រូវ តើយើងប្រើពាក្យអ្វី?)
TRAP QUESTION! warning
Her help during the project was ___.
(ជំនួយរបស់នាងកំឡុងពេលគម្រោងនេះពិតជាមានតម្លៃកាត់ថ្លៃមិនបាន។)
Context Fill
The workers went on strike because they felt they were ___.
(កម្មករបានធ្វើកូដកម្ម ព្រោះពួកគេយល់ថាទទួលបានប្រាក់ខែទាបពេក។)
Time Prefix
The building was built in the ___-war period. (Before the war)
(អគារនេះត្រូវបានសាងសង់ក្នុងសម័យមុនសង្គ្រាម។)

Mission track_changes

អនុវត្តផ្ទាល់!

Mission track_changes

អនុវត្តផ្ទាល់!

Mission track_changes

អនុវត្តផ្ទាល់!

Mission track_changes

អនុវត្តផ្ទាល់!

Video Lesson

មេរៀនជាវីដេអូ

Ask a Question front_hand

តើអ្នកមានចម្ងល់មែនទេ? សួរគ្រូនៅទីនេះ!
U

Recent Questions

S
Sreypich 2 hours ago

Why is it "irregular" but "illogical"? They both mean "not".

Reply thumb_up 15
SP
Sopheak Pich Teacher 1 hour ago

Excellent observation! It's a spelling rule to make pronunciation easier.

We use ir- before words starting with 'r' (ir-regular).
We use il- before words starting with 'l' (il-legal).
We use im- before words starting with 'm' or 'p' (im-mature, im-patient). edit

V
Vathana 5 hours ago

What is the exact difference between "flammable" and "inflammable"? I see both on chemical bottles.

Reply thumb_up 8
SP
Sopheak Pich Teacher 4 hours ago

It's a crazy English rule! They mean the EXACT same thing: "It can catch fire easily". People got confused by "inflammable" thinking it meant "not flammable", so now safety companies prefer to just use "Flammable" to keep everyone safe! local_fire_department

K
Kosal 8 hours ago

Can I use "out-" with any verb? Like "out-eat" if I eat more than my friend?

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SP
Sopheak Pich Teacher 7 hours ago

Haha, yes! You actually can! The prefix "out-" is very flexible in English when you want to show you did something better or more than someone else. E.g., outrun, outplay, outdo, outlive. directions_run

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