I haven’t updated this blog recently as I’ve been on vacation.  This is American English.  The phrase used in British English is on holiday.  In American English, a holiday is a special day such as Christmas or Thanksgiving.

In American English, we often refer to the time between school semesters as a break.

What did you do during winter break?

Do you have any plans for summer break?

The phrase take a break is also commonly used to mean relax or stop working.

You should take a break after you study for an hour to stretch and rest your eyes.

She was so busy she didn’t have time to take a break for lunch.