to take something apart

[dilodi83]

what's the opposite of to take something apart in sentences like this?

- I had to take my bike apart to put it in the boot.
- Dad had to take the swing set apart before moving to London.

Are "to set up" and "to put together" the opposites of "to take apart"?
Do they mean the same in this context? Can they be used without any particular difference in meaning in sentences like the ones above?

[bhaisahab]

what's the opposite of to take something apart in sentences like this?

- I had to take my bike apart to put it in the boot.
- Dad had to take the swing set apart before moving to London.

Are "to set up" and "to put together" the opposites of "to take apart"?
Do they mean the same in this context? Can they be used without any particular difference in meaning in sentences like the ones above?

No, the opposite of "take apart" is "put together". The opposite of "set up" in the sense you are using it, is "take down".

[dilodi83]

ok , so, could we say that I can set up a bookshelf, a picture on the wall, or the Christmas tree?
Because, up to now I've always considered "to put up" or "to stick up" as opposite of "to take down"...

[5jj]

ok , so, could we say that I can set up a bookshelf, a picture on the wall, or the Christmas tree?
Because, up to now I've always considered "to put up" or "to stick up" as opposite of "to take down"...

The opposite of 'take down' in the sense that you are using it, is 'put up', as you thought.

[dilodi83]

so, to put up or to set up in these sentences are both good.

[5jj]

I'd use 'set up' only for the Christmas tree, not the shelf or the picture.