dovetail with (something)
1. Literally, to fit together with another piece through the use of a dovetail joint. A: "I think that part of the table is supposed to dovetail with this one." B: "No, it doesn't fit."
2. To go along nicely with something. Well, if my schedule ends up dovetailing with yours, maybe we can meet up for lunch after all.
dovetail with something
1. . Lit. to interlock tightly with something using a dovetail joint. The side of the drawer dovetails with the front of the drawer.
2. Fig. to fit neatly into something. Your story doesn't dovetail with mine very well.