new moon

新月

月が地球と太陽の間にあり、明るい面が地球の反対を向く時期。

やさしい英語で： The stage when the Moon is between Earth and the Sun and its bright side faces away from us.

• The next new moon is on Friday.
• A solar eclipse can happen only at new moon.
• The calendar marks each new moon with a dark circle.

反対語： full moon

よく使う表現： at new moon, new moon phase, the next new moon, the new moon

新月の日

細い月が初めて見える日、または見えると予想される日。

やさしい英語で： The day when the Moon’s first thin curve is seen or expected to appear.

• The feast falls on the new moon.
• They celebrated the new moon when the first crescent appeared.
• The new moon marked the beginning of their month.

類義語： neomenia

よく使う表現： on the new moon, celebrate the new moon

月が満ちていく時期

暗い月の時期の後、見える明るい部分が次第に大きくなる時期。

やさしい英語で： The stage when the Moon’s visible bright part grows larger after its dark phase.

• The old almanac calls the growing phase the new moon.
• During new moon, the bright part grows larger each evening.
• In this tradition, new moon lasts while the Moon is growing.

類義語： waxing phase

反対語： waning phase

よく使う表現： new moon phase, during new moon, the new moon, bright new moon