Englishfor English speakers
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.
knight
Noun
—
A knight was a man who fought in battles on a horse during the .
The knights rode up to the castle and broke in.
—
A knight is a person who has been given knighthood by a king or queen.
—
A chess piece, often in the shape of a horse's head, that is moved two squares in one direction and one at right angles to that direction in a single move, leaping over any pieces in between.
in
Preposition
—
Used to show that something is inside something else.
The cat is in the box.
—
Used to show that someone is at home, or is available.
Is John in?
The Doctor is now in.
—
Used to show movement towards the inside.
The rain came in through the window.
Camelot
—
noun
(Arthurian legend) the capital of King Arthur's kingdom; according to the legend, truth and goodness and beauty reigned there