a period of (something)

You can use "period" to describe a specific length of time that has certain characteristics. In the example above, the period is identified as one of "weak sales". Periods can last anywhere from several days to many years.

A few more common examples used with "period" are:

a growth period

a period of transition

a period of war

a period of depression

an artistic period (in a person's life)

This phrase appears in these lessons: