dà​yuè

long solar month

Senses

大月 dà​yuè long solar month

A solar month containing 31 days

大月 dà​yuè busy month

(Taiwan) A month during which business is booming or work is exceptionally busy.

大月 dà​yuè long lunar month

A lunar month containing 30 days

References

antonym 大月/大月 小月/小月
antonym 小月/小月 大月/大月