a noun is a part of speech that names a person, object, thing, or place. Vacation is a noun that names the period of time people take off from work or school, typically for relaxation or pleasure. A vacation is usually a planned period of leave from a primary job or activity, especially risk-free holiday travel such as a cruise, ski trip, beach vacation, etc.
1. My family is going on vacation to Mexico.
2. During my vacation I'll be staying in a beach house.
3. My boss let me take an extra week of vacation.
do not confuse the noun vacation with vacate, which is a verb meaning to leave a place especially with the intention of not returning.