Englishfor English speakers
back
Preposition
—
Toward the rear.
He went back behind the stands.
—
To a place again.
I didn't like it, so I sent it back.
He went back to the same house.
They came back again.
back
Noun
—
The back is the rear part of something; it is the part in the other direction from the front.
I went to the back of the house.
—
The back is the rear part of the human body.
He had a scar on his back.
back
Verb
—
If you back something, you support it.
The Republicans backed the bill.
—
If you back up, you move backward.
He put the car in gear and backed right into the garage door.
thin
Adjective
—
If something is thin, there is a short distance from one side to the other.
I can hear the people in the other room because the wall is thin.
The man was very tall and thin as a stick.
—
If something is thin it doesn't have a lot of stuff in it.
The soup is too thin. It needs more flavour.
His hair is quite thin on top.
thin
Verb
—
If something thins, there is less of it.
After the show, the crowd thinned out quickly and only a few people stayed.
My hair started thinning when I was 25.