at
verb
Definitions
To reply to or talk to someone, either online or face-to-face. (from the practice of targeting a message or reply to someone online by writing @name)
Example: Cars 2 is the most influential film of all time. Don't @ me.
noun
Definitions
The at sign (@).
preposition
Definitions
In, near, or in the general vicinity of a particular place.
Example: Caesar was at Rome; at the corner of Fourth Street and Vine; at Jim’s house
(indicating time) Indicating occurrence in an instant of time or a period of time relatively short in context or from the speaker's perspective.
Example: at six o’clock; at closing time; at night.
In the direction of (often in an unfocused or uncaring manner).
Example: He threw the ball at me. He shouted at her.
Denotes a price.
Example: 3 apples at 2¢ (each) The offer was at $30,000 before negotiations.