The at sign (@).
(also as at; before dates) On a particular date.
Occupied in (activity).
In a state of.
On the subject of; regarding.
In, near, or in the general vicinity of a particular place.
Denotes a price.
Because of.
Bothering, irritating, causing discomfort to
Indicates a position on a scale or in a series.
Indicates a means, method, or manner.
Holding a given speed or rate.
Indicating occurrence in an instant of time or a period of time relatively short in context or from the speaker's perspective.
In the direction of (often in an unfocused or uncaring manner).