Translation and Meaning of: 円周 - enshuu

The Japanese word 円周 (えんしゅう) may seem simple at first glance, but it carries interesting meanings and uses in everyday life in Japan. If you are studying Japanese or are just curious about the language, understanding terms like this can enrich your vocabulary and even help in practical situations. In this article, we will explore the meaning, origin, and use of 円周, as well as tips for memorizing it effectively.

円周 significa "circunferência" em inglês.

円周 (えんしゅう) is a Japanese word that means "circumference." It is used to describe the perimeter of a circle, that is, the curved line that forms the outline of this geometric figure. The term is composed of two kanji: 円 (えん), which means "circle" or "round," and 周 (しゅう), which can be translated as "turn" or "perimeter."

In Japan, 円周 is a common term in academic contexts, especially in mathematics and geometry classes. If you have studied formulas like "2πr" to calculate the circumference of a circle, know that the Japanese use exactly the same concept, just with the word 円周 instead.

Origin and etymology of 円周

The origin of 円周 dates back to the use of the kanjis 円 and 周 in the Japanese language. The kanji 円, in addition to meaning "circle," is also used to represent the yen, the Japanese currency, which used to be made in a round shape. Meanwhile, the kanji 周 appears in other words related to perimeters and surroundings, such as 周囲 (しゅうい), which means "surroundings" or "neighborhood."

It is worth noting that 円周 is not an ancient or obsolete word. On the contrary, it continues to be widely used in modern Japan, especially in textbooks and study materials. If you take a math course in Japanese, you will likely encounter this term several times.

How to memorize 円周?

An effective way to memorize the word 円周 is to associate it with images or everyday situations. For example, think of a yen coin (which has the kanji 円) and imagine measuring its circumference with a ruler (representing 周). This visual association can help embed the meaning more permanently.

Another tip is to practice with math exercises in Japanese. Calculating the circumference of round objects, such as plates or wheels, using the formula 円周 = 2πr, can reinforce the practical use of the word. If you like to note vocabulary on flashcards, including 円周 in a deck of mathematical terms is also a good strategy.

Vocabulary

Expand your vocabulary with related words:

Synonyms and similar words

• 周囲 (Shūi) - Perimeter, the distance around an object
• 周長 (Shūchō) - Circumference usually refers to the perimeter of geometric shapes.
• 円周長 (Enshūchō) - Circumference, specifically referring to the perimeter of a circle.

円周

Romaji: enshuu
Kana: えんしゅう
Type: noun
L: jlpt-n2

Translation / Meaning: circumference

Meaning in English: circumference

Definition: circumference around the circle.

Example Sentences - (円周) enshuu

See below some example sentences:

円周率は3.14です。

Enshuuritsu wa 3.14 desu

The value of pi is 3.14.

The PI is 3.14.

• 円周率 - means "pi" in Japanese, it is a mathematical constant that represents the relationship between the circumference of a circle and its diameter.
• は - grammatical particle that indicates the topic of the sentence, in this case, "pi".
• 3.14 - approximate value of pi.
• です - verb "to be" in Japanese, indicating that the value presented is an affirmation.