in

Is Mr. Smith in?

Little by little I pushed the snake into the basket, until finally all of it was in.

If the tennis ball bounces on the line then it's in.

I've discovered why the TV wasn't working – the plug wasn't in!

The replies to the questionnaires are now all in.

Skirts are in this year.

the in train

You can't get round the headland when the tide's in.

in by descent; in by purchase; in of the seisin of her husband

“[…] He […] took a rifle out of the batch and shot at me. I was lucky he was such a crummy shot.”

“Why would he do that?”

“I think he's in with them, Doctor.”

“Them? You mean Ned and Cody?”

“All of them. Hickok, the split tail, the whole lot.”

I think that bird fancies you. You're in there, mate!

Blocks of compressed coal keep the fire in for a long time, but they give out very little heat.