最終更新日：2025/11/19

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

A solar year, the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference).

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year

編集履歴（0）

元となった辞書の項目

year

/jɪə/

名詞

広義

日本語の意味

太陽年：地球が太陽の周りを一周するのに要する期間（約365.24～365.26日）

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A year is the time Earth takes to complete one revolution around the Sun, roughly 365.24 days.

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太陽年（地球が太陽を一周するのに要する時間）は約365.24日です。

意味（1）

we moved to this town a year ago; I quit smoking exactly one year ago

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意味（2）

(by extension) The time it takes for any astronomical object (such as a planet, dwarf planet, small Solar System body, or comet) in direct orbit around a star (such as the Sun) to make one revolution around the star.

Mars goes around the sun once in a Martian year, or 1.88 Earth years.

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意味（3）

A period between set dates that mark a year, from January 1 to December 31 by the Gregorian calendar, from Tishiri 1 to Elul 29 by the Jewish calendar, and from Muharram 1 to Dhu al-Hijjah 29 or 30 by the Islamic calendar.

Dotcom mania was slow in coming to higher education, but now it has the venerable industry firmly in its grip. Since the launch early last year of Udacity and Coursera, two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations.

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意味（4）

A scheduled part of a calendar year spent in a specific activity.

During this school year I have to get up at 6:30 to catch the bus.

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意味（5）

(sciences) A Julian year, exactly 365.25 days, represented by "a".

意味（6）

A level or grade in school or college.

Every second-year student must select an area of specialization.

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意味（7）

The proportion of a creature's lifespan equivalent to one year of an average human lifespan (see also dog year).

Geneticists have created baker's yeast that can live to 800 in yeast years.

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years

（ plural ）

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