operation
gb/ˌɑpɚˈeɪʃən/ us/ˌɑpɚˈeɪʃən/
A2
อังกฤษ
~ 700
ความหมาย
0 ความหมาย
คำนาม
B1
action
1
Planned activity to achieve something
A planned set of actions done to reach a goal.
รูปแบบการใช้:
to carry out [an operation]
ข้อผิดพลาดที่พบบ่อย:
Learners sometimes confuse 'operation' with 'opportunity'. 'Operation' means an organized activity, not a chance to do something.
คำพ้องความหมาย
mission (Often used for military or space contexts, slightly more formal.)
|
undertaking (Emphasizes a project or task, often large or challenging.)
คำตรงข้าม
inaction (The absence of any activity toward a goal.)
คำที่ใช้ร่วมกัน
military operation
|rescue operation
|covert operation
|joint operation
|police operation
หัวข้อ
business
|military
|daily life
|work
ตัวอย่าง
- The rescue operation saved dozens of people trapped in the building.
- The police launched a major operation to catch the drug traffickers.
- The charity’s latest operation aims to provide clean water to remote villages.
ตัวอย่างสำหรับผู้เรียน
- The rescue operation helped many people.
- The police started an operation to find the missing child.
- The company began an operation to open a new store.
คำนาม
A2
action
2
Medical surgery or procedure
A medical treatment where doctors cut into the body to fix a problem.
รูปแบบการใช้:
to have [an operation]
ข้อผิดพลาดที่พบบ่อย:
Learners sometimes confuse 'operation' with 'treatment'. An 'operation' is specifically surgical.
คำพ้องความหมาย
surgery (More common in medical contexts; refers specifically to the procedure.)
คำตรงข้าม
noninvasive treatment (A treatment that does not require cutting into the body.)
คำที่ใช้ร่วมกัน
have an operation
|undergo an operation
|life-saving operation
|minor operation
|surgical operation
หัวข้อ
health
|medicine
|body
ตัวอย่าง
- She had an operation on her knee last year.
- The patient needs an urgent heart operation.
- After the operation, he stayed in the hospital for two weeks.
ตัวอย่างสำหรับผู้เรียน
- I had an operation on my leg.
- The doctor will do the operation tomorrow.
- He is better after the operation.
คำนาม
technical
B1
state
3
State of working or being active
When a machine or system is working and doing its job.
รูปแบบการใช้:
[something] is in operation
คำพ้องความหมาย
functioning (Refers broadly to something working as intended.)
คำตรงข้าม
shutdown (When something stops working or is turned off.)
คำที่ใช้ร่วมกัน
in operation
|out of operation
|put into operation
|cease operation
หัวข้อ
technology
|engineering
|science
ตัวอย่าง
- The new subway line will be in operation next year.
- This machine has been in continuous operation for 24 hours.
- Due to maintenance, the elevator is out of operation.
ตัวอย่างสำหรับผู้เรียน
- The bus service is in operation today.
- The machine is out of operation now.
- The factory is in full operation.
คำนาม
technical
B2
action
4
Mathematical or logical process
A way of working with numbers or data, like adding or multiplying.
คำพ้องความหมาย
calculation (Emphasizes the result of applying mathematical operations.)
คำตรงข้าม
data storage (Keeping data without changing it.)
คำที่ใช้ร่วมกัน
mathematical operation
|logical operation
|basic operations
หัวข้อ
mathematics
|computing
|science
|technology
|education
ตัวอย่าง
- Addition and subtraction are basic mathematical operations.
- The program performs several operations on the input data.
- Division is the opposite of the multiplication operation.
ตัวอย่างสำหรับผู้เรียน
- Addition is a math operation.
- We use this operation to get the answer.
- Multiplication is an important math operation.
ไวยากรณ์
รูปคำในพจนานุกรม
operation
IPA
GB/ˌɑpɚˈeɪʃən/
US/ˌɑpɚˈeɪʃən/
พยางค์และการเน้นเสียง
op - er - a - tion (4 พยางค์)
Stress on 2nd syllable (er)
รูปคำ
Noun
- Base: operation
- Plural: operation, operations
กลุ่มคำที่เกี่ยวข้อง
Forms
operations
noun
Related words
operational
adjective B1
operationally
adverb
Negative and opposite forms
inoperative
adjective
inoperable
adjective
Advanced or less common
operative
adjective B2
วลีและสำนวน
in operation
1/ˈɪn ˌɑpɚˈeɪʃən/
fixed phrase
Currently working or active
Working and being used right now.
ตัวอย่าง
- The new airport terminal is now in operation.
- The old factory has not been in operation for years.
out of operation
1/ˈaʊt əv ˌɑpɚˈeɪʃən/
fixed phrase
Not working or active at present
Not working or being used right now.
ตัวอย่าง
- The elevator is out of operation due to repairs.
- The website will be out of operation for maintenance tonight.
covert operation
1/kˈoʊvɚt ˌɑpɚˈeɪʃən/
fixed phrase
secret planned military or spy action
A planned military, spy, or political action that is done in secret so that people do not know who is behind it.
ตัวอย่าง
- They carried out a covert operation to gather intelligence.
- They authorized a covert operation to gather intelligence inside the country.
- The covert operation was revealed by journalists.
- The book reveals several covert operations carried out during the war.
- Congress demanded to know who had approved the covert operation.
military operation
1/mˈɪlɪtˌɛɹi ˌɑpɚˈeɪʃən/
fixed phrase
Planned action by soldiers
An organized action by the army, navy, or air force to reach a goal.
ตัวอย่าง
- The military operation lasted three weeks.
- The military operation lasted three days.
- They planned a joint military operation with allied forces.
- Several countries joined the military operation.