caber
to fit
cab
taxi
+
-er
verb suffix
Caber means to fit. You can remember it by thinking of a cab0 (taxi0) and how many people can fit in it. The -er1 ending indicates it's a verb1.
verb
- to fitTo fit or be contained within a space.No creo que todos estos libros quepan en la maleta. // I don't think all these books will fit in the suitcase.