Englishfor English speakers
at
Preposition
—
Used to describe where something is, or when saying something's position
I am at home.
Let's meet at the pub!
—
The time at which something happened or will happen
Breakfast is at 9 o'clock.
At 5pm we went home.
—
Indicating something's state
At half price!
Water boils at high temperatures.
at
Symbol
—
The @ symbol, used to replace at
support@microsoft.com is an email address.
Apples @ £1.50 per kilogram.
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
—
A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
dance
Verb
—
If you dance, you move your body to music.
He danced with the princess to the music of Mozart.
The performers danced and sang.
dance
Noun
—
Dance is body movement done to music.
He has an interesting dance he does while listening to that song.
—
A dance is an event where people come together to dance.
Are you going to the dance?