Is there a difference between dipole and dipole moment?
The (electric) dipole moment is a mathematically clearly defined quantity, the product of charge difference and distance

A dipole is anything (e.g. a molecule, or a part of a molecule), that has a non-zero dipole moment.

And a polar molecule is one that has at least local dipoles. CO2 is polar if you get close (i.e. in a condensed phase). From a slightly larger distance, it's unpolar, because the centers of the positive and negative charge distributions in it are identical, the two local C=O dipoles cancel each other out.