in a particular place
There’s a telephone box at the crossroads.
I’ll meet you at the main entrance.
She’s staying at the Clarence Hotel.
We live at 23 Brookfield Avenue.
at someone’s (=at their house): I’m babysitting at Sally’s tomorrow night.
at home: He wants to spend more time at home with his family.
at work (=in the place where someone works): Dad should be at work by now.
at the doctor’s/dentist’s/hairdresser’s etc: Trevor’s at the doctor’s – he’ll be back soon.
Synonyms and related words