fit together(redirected from fit it together)
1. Of two or more things, to be shaped in a way that allows them to physically connect. No, these two puzzle pieces don't fit together—pass me that piece near your hand.
2. To cause two or more things to fit together. In this usage, a noun or pronoun can be used between "fit" and "together." Nope, I had no luck fitting those two puzzle pieces together.
fit something together
to put the parts of something together. First you have to fit the pieces together to see if they are all there. I think I can fit the parts of the model airplane together. Do you think you can fit together all the parts of the puzzle?
[for things] to conform in shape to one another. All the pieces of the puzzle fit together. They really do. This nut and bolt just don't fit together.