circumference
gb/sɚkˈʌmfɹəns/ us/sɚkˈʌmfɹəns/
B2
อังกฤษ
~ 9200
ความหมาย
0 ความหมาย
คำนาม
technical
B2
quantity
1
distance around a circle
The distance all the way around a circle or round object.
รูปแบบการใช้:
the circumference of [something]
ข้อผิดพลาดที่พบบ่อย:
Learners often confuse 'circumference' with 'radius', 'diameter', or 'perimeter'. 'Circumference' is the distance around a circle. The radius is the distance from the center to the edge, the diameter is the distance across the circle through the center, and 'perimeter' is the distance around any shape (not just a circle). Another common mistake is to say 'a circumference of the circle is 10 cm'; more natural is 'the circumference of the circle is 10 cm'.
คำพ้องความหมาย
perimeter (A general word for the distance around any shape, not only circles; often used in everyday contexts more than in strict geometry for circles.)
|
girth (Usually refers to the distance around the body of a person or animal, especially around the waist or chest; more physical and concrete than the mathematical term.)
คำตรงข้าม
diameter (A contrasting measurement that goes straight across a circle through its center, instead of around it.)
คำที่ใช้ร่วมกัน
the circumference of a circle
|calculate the circumference
|measure the circumference
|earth's circumference
|waist circumference
หัวข้อ
math
|science
|geometry
|education
|core_vocabulary
ตัวอย่าง
- To find the circumference of the circle, multiply its diameter by π.
- The tree's circumference was over three meters, showing how old it was.
- Engineers need the exact circumference of the wheel to program the speed sensors.
- Doctors often measure waist circumference to check for health risks.
- The earth's circumference at the equator is a little over 40,000 kilometers.
ตัวอย่างสำหรับผู้เรียน
- We learned how to find the circumference of a circle in math class.
- The circumference of this plate is about one meter.
- She measured the circumference of his waist with a tape.
- This machine shows the circumference of each metal ring.
- The circumference of the earth is very large.
คำนาม
C1
entity
2
outer boundary of a round area
The outside edge or line around a round area or round object.
รูปแบบการใช้:
around the circumference of [something]
ข้อผิดพลาดที่พบบ่อย:
Learners may think 'circumference' in this sense must always involve numbers or measurement, but it can simply mean the outer line or edge of a round area. In everyday descriptions, 'edge' or 'around the edge' is often more natural, so overusing 'circumference' in casual speech can sound too technical.
คำพ้องความหมาย
edge (A more general and common word for the outer limit of a surface or area, not limited to round shapes.)
|
border (Emphasizes the dividing line between two areas; not limited to circular shapes and used more broadly in geography and design.)
คำตรงข้าม
center (Refers to the middle point of a space or object, in contrast to its outer boundary.)
คำที่ใช้ร่วมกัน
around the circumference
|mark the circumference
|along the circumference
|trace the circumference
หัวข้อ
space
|geometry
|science
|core_vocabulary
ตัวอย่าง
- Lights were placed around the entire circumference of the stadium roof.
- A low stone wall marked the circumference of the old garden.
- Trees had been planted along the circumference of the lake.
- She slowly walked the circumference of the arena, waving to the crowd.
- The fence follows the circumference of the circular field.
ตัวอย่างสำหรับผู้เรียน
- There is a path around the circumference of the pond.
- Benches stand along the circumference of the round park.
- He drew a circle and then colored only its circumference.
- Shops are built around the circumference of the plaza.
- They put lamps around the circumference of the round pool.
ไวยากรณ์
รูปคำในพจนานุกรม
circumference
IPA
GB/sɚkˈʌmfɹəns/
US/sɚkˈʌmfɹəns/
พยางค์และการเน้นเสียง
cir - cum - fer - ence (4 พยางค์)
Stress on 1st syllable (cir)
รูปคำ
Noun
- Base: circumference
- Plural: circumferences
กลุ่มคำที่เกี่ยวข้อง
Forms
circumferences
noun
Related words
circumferential
adjective
Advanced or less common
circumferentially
adverb
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