at

PLACE

A1used to show where someone or something is

• I'll meet you at the station.
• She's at work until six.

TIME

A1used to show when something happens

• The class starts at nine o'clock.
• We usually eat at the weekend together.

DIRECTION

A2towards someone or something

• Look at this photo!
• The children were throwing snowballs at each other.

RATE

B1used to show a price, speed, level or age

• He was driving at 100 kilometres an hour.
• She left school at sixteen.

ABILITY

B1used after an adjective to say how good someone is at an activity

• She's very good at maths.
• I'm terrible at remembering names.