At&t cell phone plans for 2 lines

From Wikipedia, the free encyclopedia

AT or at may refer to:

Geography[edit]

Austria[edit]

• Austria (ISO 2-letter country code)
• .at, Internet country code top-level domain

United States[edit]

Elsewhere[edit]

Science and technology[edit]

Computing[edit]

• @ (or "at sign"), the punctuation symbol now typically used in e-mail addresses and tweets)
• at (command), used to schedule tasks or other commands to be performed or run at a certain time
• IBM Personal Computer/AT
• The Hayes command set for computer modems (each command begins with the character string "AT")

Biology and medicine[edit]

Physics and chemistry[edit]

• Astatine (symbol At), a chemical element
• Ampere-turn (symbol At), an International System of Units (MKS) unit of magnetomotive force
• Attotesla, 10−18 tesla, an SI derived unit of magnetic flux density
• Technical atmosphere (symbol at), a physical unit of pressure

Other uses in science and technology[edit]

Other uses[edit]

See also[edit]

Topics referred to by the same term

Their older son has graduated, but their younger son is still at school. [=is still attending school]

2 

— used to indicate the person or thing toward which an action, motion, or feeling is directed or aimed

• She pointed her gun at the target.

• His anger is directed at his brother.

• She shouted (words of) abuse at me.

• She grabbed at my arm. [=she tried to grab my arm]

3 

— used to indicate something that is being tried or attempted

• I made an attempt at persuading him to go.

• I took a shot at doing it myself. [=I tried to do it myself]

4 

: because of or in reaction to (something)

• She's furious at how slowly the investigation is proceeding.

• I was greatly surprised at [=by] the result. [=the result surprised me greatly]

• He enlisted in the army at his father's urging. [=because his father urged him to]

• She visited the museum at my suggestion.

• They came here at our invitation.

• You can act at your own discretion.

5 

— used to indicate an activity

• He's very serious when he's at work. [=when he's working]

• children who are at play [=children who are playing]

• She's good at (playing) chess. [=she plays chess well]

• I'm bad at cooking. [=I'm a bad cook, I do not cook well]

• She's doing very well at her studies.

6 

— used to indicate a situation or condition

• I'm not at liberty to discuss that.

• two nations that are at war

7 

a  — used to indicate position on a scale or in a series

• The temperature is at 90 degrees.

• He was driving at almost 80 miles an hour.

b  — used to indicate a rate

• They sell at [=for] a dollar a dozen. [=each dozen costs one dollar]

8 

— used to indicate an age or time

• He plans to retire at (age) 65.

• He called us at (about/exactly) 9 o'clock on July 24.

• I still think of her at certain moments/times.

• He was president of the company at (the time of) his death.

9 

— used to indicate the method by which something is done

• The property was sold at auction.

10 

a  — used in phrases like at best, at worst, etc., to indicate a possible result or condition that is considered best, worst, etc.

• The company will make a small profit at best this year. [=it is not possible that the company will earn anything better/more than a small profit]

• We might be 5 or 10 minutes late at worst. [=we will not be more than 5 or 10 minutes late]

• We should arrive by noon at the latest. [=we should not arrive later than noon]

b  — used in phrases like at its best, at its worst, etc., to indicate that something or someone is as good, bad, etc., as possible

• This is baseball at its best.

• He's often rude, and last night he was at his worst.

◊ The word at is used in speech in e-mail addresses.

• “Can I e-mail you?” “Sure. Our e-mail address is ‘comments at Merriam-Webster dot com.’”

In writing, the symbol @ is used instead.

: doing some activity

• I didn't expect her to have started working yet, but she was already (hard) at it when I arrived. [=she was already working (hard) when I arrived]

• My neighbors are always arguing, and they were at it again last night. [=they were arguing again last night]

• Since we're cleaning the kitchen, we should wash the floor while we're at it. [=we should wash the floor when we clean the kitchen]

  What is the use at?

  At is a preposition. We use at to refer to time or place.

  Why do we use at and in?

  “At” is used when you are at the top, bottom or end of something; at a specific address; at a general location; and at a point. “In” is used in a space, small vehicle, water, neighborhood, city and country.

  Why AT is used for?

  Using the Preposition “at” The preposition “at” can be used in multiple contexts, such as telling time or location (e.g., telling someone to meet “at midnight” or “at the coffee shop”). However, “at” can also be used to introduce prepositional phrases that identify the object of a sentence.