Englishfor English speakers
no
Adverb
—
used to disagree or refuse (not accept).
No, I do not fish.
I'm I ready? No, I still have some things to do first.
no
Determinative
—
Not any.
There is no water left.
No hot dogs were sold yesterday.
—
Not any possibility or allowance of (doing something).
No smoking
There's no stopping her once she gets going.
—
Not; not properly, not really; not fully.
My mother's no fool.
Working nine to five every day is no life.
one
Determinative
—
(ordinal first) The number 1.
We have one nose and one mouth.
one
Noun
—
The number 1.
One is the smallest whole number.
one
Pronoun
—
One is a singular pronoun which means "someone" or "people". It is used more often in formal writing.
It is easy to see the difference if one looks closely enough.
else
Preposition
—
You use else to show that something is not the same one as another thing.
OK, he's cute, but what else has he got?
I don't think this one fits me. Do you have anything else in the same colour?
I've told you most of it. There's not much else I can think of.
else
Adverb
—
You use mathx/math or else mathy/math to say that if mathx/math doesn't happen or isn't true, mathy/math would happen or would be true.
They don't want to be here or else they would have come.
—
You use or else to say that if something doesn't happen, it will be bad.
You'd better clean your room, or else.