The preposition is pronounced [PH:I][PH:n]. The adverb is pronounced [PH:I][PH:n]. (POSITION OR MOVEMENT)
In addition to the uses shown below, in is used after some verbs, nouns, and adjectives in order to introduce extra information. In is also used with verbs of movement such as `walk' and `push', and in phrasal verbs such as `give in' and `dig in'.
1 prep Someone or something that is in something else is enclosed by it or surrounded by it. If you put something in a container, you move it so that it is enclosed by the container.
He was in his car., ...clothes hanging in the wardrobe...
2 prep If something happens in a place, it happens there.
We spent a few days in a hotel..., He had intended to take a holiday in America...
3 adv If you are in, you are present at your home or place of work.
be ADV (Antonym: out)
My flatmate was in at the time...
4 adv When someone comes in, they enter a room or building.
ADV after v
She looked up anxiously as he came in..., They shook hands and went in.
5 adv If a train, boat, or plane has come in or is in, it has arrived at a station, port, or airport.
ADV after v, be ADV
We'd be watching every plane coming in from Melbourne..., Look. The train's in. We'll have to run for it now.
6 adv When the sea or tide comes in, the sea moves towards the shore rather than away from it.
ADV after v, be ADV (Antonym: out)
She thought of the tide rushing in, covering the wet sand...
7 prep Something that is in a window, especially a shop window, is just behind the window so that you can see it from outside.
There was a camera for sale in the window.
8 prep When you see something in a mirror, the mirror shows an image of it.
I couldn't bear to see my reflection in the mirror...
9 prep If you are dressed in a piece of clothing, you are wearing it.
oft -ed PREP n
He was a big man, smartly dressed in a suit and tie.
10 prep Something that is covered or wrapped in something else has that thing over or round its surface.
oft -ed PREP n
His legs were covered in mud.
11 prep If there is something such as a crack or hole in something, there is a crack or hole on its surface.
There was a deep crack in the ceiling above him.