i Register
In some senses, nav is marked as informal. Watch for register when choosing this word.
VERB + NAV
lights, sat
I sat nav for my friend on our road trip last weekend.
NAV + NOUN
car, station
I set the nav station in my car before we left for the airport this morning.
PREP.
in
I checked the GPS nav in my car before driving to the unfamiliar restaurant.
ADV.
abroad
My family decided to nav abroad last summer and visited three different countries.