month

名词 month:

1. one of the twelve divisions of the calendar year
   同义词：calendar month
2. a time unit of approximately 30 days

1. He shut himself away for a month to catch up on his academic work.
   他与世隔绝一个月，力图把功课赶上去。
2. We're paying out 300 a month on our mortgage.
   我们每 月要付300英镑抵押贷款。
3. July is the hottest month in a year in my hometown.
   在我的家乡，七月是一年里最热的一月。
4. He's asking 80 a month rent for that flat.
   那套房间月租他要80英镑。
5. His baby is six months old.
   他的孩子有六个月大了。

month

n.Abbr. m.,mo.（名词）缩写 m.,mo.
A unit of time corresponding approximately to one cycle of the moon`s phases, or about 30 days or 4 weeks.
月：大约和月亮盈亏的一个周期相当的时间单位，或约三十天或四周
One of the 2 divisions of a year as determined by a calendar, especially the Gregorian calendar.Also called calendar month
月份：由日历确定、尤指由公历确定的将一年分为十二份之一也作 calendar month
A period extending from a date in one calendar month to the corresponding date in the following month.
一个月的时间：从日历上某月的一天到下个月这一天的一段时间
A sidereal month.
恒星月
A lunar month.
太阴月
A solar month.
太阳月

<习惯用语>month of Sundays【非正式用语】
An indefinitely long period of time:
一段很长但不确定的时间：
例句：
It will take you a month of Sundays to chop all that wood.
你得花费很长时间才能劈完所有的柴

来源：
Middle English moneth
中古英语 moneth
from Old English mônath * see mô- 2
源自 古英语 mônath *参见 mô- 2

The singularmonth, preceded by a numeral (or number) and a hyphen, is used as a compound attributive:
单数的month 之前跟一个数词（或数字）和一个连字符， 被用作复合定语：
例句：
a three-month vacation.
三个月的假期。

The plural possessive form without a hyphen is also possible:
不带连字符的复数所有格形式也可以：
例句：
a three months` vacation.
三个月的假期