Englishfor English speakers
expiration
—
noun
(= expiry)
a coming to an end of a contract period
the expiry of his driver's license
—
noun
(= exhalation)
the act of expelling air from the lungs
—
noun
(= passing)
euphemistic expressions for death
thousands mourned his passing
of
Preposition
—
Made using.
It is a house of cards.
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.
patent
Noun
—
A patent is a way of protecting an invention from being stolen.
—
Thomas Edison had over 2000 patents.
patent
Verb
—
To patent means to get a patent on an invention
Thomas Edison patented the light bulb and the phonograph.