effective
gb/ɪfˈɛktɪv/ us/ɪfˈɛktɪv/
B1
อังกฤษ
~ 1100
ความหมาย
0 ความหมาย
adjective
B1
property
1
Producing the desired result
Able to produce the result you want.
รูปแบบการใช้:
[something] is effective at [doing something]
ข้อผิดพลาดที่พบบ่อย:
Learners sometimes confuse 'effective' with 'efficient'. 'Effective' means it works well, while 'efficient' means it works well with little waste.
คำพ้องความหมาย
successful (Emphasizes achieving a goal, sometimes with broader scope than 'effective'.)
|
efficient (Focuses on achieving results with minimal waste of time or resources.)
คำตรงข้าม
ineffective (Direct opposite; fails to produce the intended result.)
|
useless (Stronger and more negative; of no practical use.)
คำที่ใช้ร่วมกัน
highly effective
|effective method
|effective strategy
|effective communication
|effective treatment
หัวข้อ
business
|daily life
|problem solving
|core_vocabulary
|work
ตัวอย่าง
- This new medicine is highly effective against the virus.
- The training program was effective in improving staff performance.
- Her speech was effective in changing public opinion.
- Regular exercise is effective at reducing stress.
- The new policy proved effective after just a few weeks.
ตัวอย่างสำหรับผู้เรียน
- The new rules are effective in schools.
- This cream is effective for dry skin.
- Exercise is effective for good health.
- The plan is effective and easy to follow.
adjective
formal
B2
property
2
In operation from a given time
Starting to be used or done from a certain time.
รูปแบบการใช้:
effective [date/time]
ข้อผิดพลาดที่พบบ่อย:
Learners may confuse this meaning with 'effective' meaning 'good at producing results'; here it refers to the start of official use.
คำพ้องความหมาย
operative (More technical/legal term for being in force.)
คำตรงข้าม
expired (No longer valid or in effect.)
คำที่ใช้ร่วมกัน
effective immediately
|effective date
|effective from
|effective as of
หัวข้อ
law
|business
ตัวอย่าง
- The new law will be effective from January 1st.
- The changes are effective immediately.
- Her promotion is effective as of next Monday.
- The policy becomes effective upon signature.
ตัวอย่างสำหรับผู้เรียน
- The rule is effective today.
- My new job is effective next week.
- The law is effective from May 1.
adjective
formal
C1
property
3
Existing in fact, not formally recognized
Real or true in fact, even if not official.
คำพ้องความหมาย
actual (Emphasizes real existence regardless of formal status.)
คำตรงข้าม
nominal (Refers to something existing in name only without real power or effect.)
คำที่ใช้ร่วมกัน
effective leader (de facto)
|effective control
|effective power
หัวข้อ
law
|politics
|core_vocabulary
ตัวอย่าง
- He is the country's effective ruler, though not elected.
- They have effective control over the region.
- She became the effective head of the department after her boss resigned.
ตัวอย่างสำหรับผู้เรียน
- She is the effective boss here.
- He has effective control of the team.
- They are the effective leaders now.
ไวยากรณ์
รูปคำในพจนานุกรม
effective
IPA
GB/ɪfˈɛktɪv/
US/ɪfˈɛktɪv/
พยางค์และการเน้นเสียง
ef - fect - ive (3 พยางค์)
Stress on 2nd syllable (fect)
รูปคำ
Adjective
- Base: effective
กลุ่มคำที่เกี่ยวข้อง
Core family
Negative and opposite forms
วลีและสำนวน
effective date
1/ɪfˈɛktɪv dˈeɪt/
fixed phrase
formal
Official start date of something
The day when something starts to be used or done by law or rule.
ตัวอย่าง
- The contract's effective date is July 1st.
- Check the policy's effective date before signing.
effective immediately
1/ɪfˈɛktɪv ɪmˈidiɪtli/
fixed phrase
formal
Starting now without delay
Starting right now, without waiting.
ตัวอย่าง
- Your suspension is effective immediately.
- The price increase is effective immediately.