Englishfor English speakers
PC
—
noun
(= personal computer)
a small digital computer based on a microprocessor and designed to be used by one person at a time
system
Noun
—
A group of things that work together; a way of doing something.
This coloured paper is part of my system for keeping lists of people.
add
Verb
—
If you add mathx/math to mathy/math, you put mathx/math and mathy/math together.
Cook for five minutes, then add the remaining spices to the soup.
—
If you add time, or price, you increase it.
A new kitchen would add value to the home.
We need to add five more waiters by next week.
—
If you add something to what you've said, you say something more.
I paused for a moment, then added, "Would you mind if I had some pudding?"
on
Preposition
—
positioned at the upper surface of, touching from above
The apple is on the table.
—
at the date of
Tim was born on the 4th of July.
—
along, forwards (continuing an action)
drive on, rock on
—
about, dealing with the subject of
I have a book on history.
There was a World Summit on the Information Society a few weeks ago.
—
touching; hanging from
I have no money on me at the moment.
I would like to eat the fruit on the trees.
—
because of, due to
He was arrested on suspicion of bribery.
I contacted Joanne on a hunch that she would know about it.
The stock price increased on news of a new product.
on
Adjective
—
If something is on, it is active, functioning or operating.
The television is on.
The lights are on, so it is very bright.