Englishfor English speakers
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.
dollar
Noun
—
The dollar is the main unit of money in the United States, Canada, and other countries including Australia, the Bahamas, Barbados, Belize, Bermuda, Fiji, Guyana, Hong Kong, Jamaica, Liberia, New Zealand, Singapore, the Solomon Islands, Trinidad and Tobago, and Zimbabwe. It is usually equal to 100 cents.