Proximity (सामीप्य) with actual or intended contact
(a). मिक्स समय का बोध : proximity in time
He will come at 4 o'clock.
He came noon /night/ midnight.
(b). छोटे स्थान का बोध: proximity in place
He lives at Madhubani.
He is at home.
My son is at school.
(c). Indicating price /rate/ speed : proximity in value/ speed
Rise sells at Rs. 10/-a kilo.
At what price is this is sold.
I bought this coast at 25% discount.
The train is running at 60 km an hour.
(d). दिशा/ लक्ष्य का बोध: proximity in aim /direction
She is looking at him.
He frowned at him for laughing at him.
Suddenly the dog at me .
A man with a gun was shooting at the crowed.
(e ). Indicating or state, condition or continuous activity: proximity in state occupation
Children are at play.
They are at work.
He is standing at ease.