AT

/æt, ət/
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Thân thiện
Definition
  1. Preposition:
    • Indicating location or position: Used to specify a point in space where something is or occurs.
    • Indicating time: Used to specify a point in time when something happens.
    • Indicating direction or target: Used to show the target of an action or feeling.
    • Indicating a state, condition, or activity: Used to describe being engaged in a particular activity or state.
    • Indicating rate, value, or measurement: Used to express a specific rate, price, age, or level.
Usage Examples
  • Indicating location:
    • She is waiting at the bus stop.
    • They met at the restaurant.
  • Indicating time:
    • The meeting starts at 9:00 AM.
    • We arrived at midnight.
  • Indicating direction/target:
    • He shouted at the referee.
    • Please look at this document.
  • Indicating state/activity:
    • The children are at school.
    • He is good at chess.
  • Indicating rate or value:
    • The car was traveling at 60 miles per hour.
    • I bought these apples at $2 per pound.
Advanced Usage
  • "at" in idiomatic expressions of ability or skill:
    • She is an expert at solving complex problems.
  • "at" to indicate a cause or source of emotion:
    • I was amazed at his courage.
    • They were angry at the delay.
Variants and Related Words
  • @ (symbol): The "at sign," commonly used in email addresses and social media handles (e.g., user@example.com). It is read as "at."
  • At. (abbreviation): Abbreviation for "atmosphere" (a unit of pressure) or "atomic."
Synonyms
  • Prepositional synonyms (context-dependent):
    • by, beside, near (for location).
    • on, upon, in (for time, depending on specificity).
    • toward (for direction).
Related Phrasal Verbs

(Note: "at" is a preposition, not a verb, so it does not form phrasal verbs itself. It is commonly used after verbs to form prepositional verbs.) - look at: to direct one's gaze toward. - Look at the beautiful sunset. - shout at: to yell in the direction of someone or something. - It's not polite to shout at people. - laugh at: to react with laughter toward someone or something. - It's cruel to laugh at someone's mistakes. - aim at: to point or direct something toward a target. - The campaign is aimed at young adults.

Related Idioms
  • at all: in any way; to any extent (used for emphasis, especially in negative or interrogative contexts).
    • I don't understand it at all.
  • at best: in the most favorable interpretation or condition.
    • The plan is, at best, a temporary solution.
  • at first: at the beginning.
    • At first, I didn't like the city, but now I love it.
  • at large:
    • (of a criminal) not captured; free.
      • The suspect is still at large.
    • As a whole; in general.
      • Society at large must address this issue.
  • at once:
    • Immediately.
      • You must leave at once.
    • Simultaneously.
      • Don't try to do everything at once.
  • at that: in addition; furthermore.
    • It was an expensive car, and a fast one at that.
  • at times: occasionally; sometimes.
    • At times, I miss my hometown.
Noun
  1. 100 at equal 1 kip in Laos
  2. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

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