Chemical polarity concerns unequal distribution of electron density in a chemical bond or molecule. A polar molecule has a permanent electric dipole moment; the effects of individual bonds must be combined with their spatial arrangement. In a symmetric linear carbon dioxide molecule, opposing bond-dipole contributions cancel. In water, its bent molecular geometry prevents that cancellation, giving a permanent electric dipole moment.[ref]
https://openstax.org/books/chemistry-2e/pages/7-6-molecular-structure-and-polarity. Chemistry 2e, 7.6: geometry and molecular polarity
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Chemical polarity refers to the distribution of electrical charge over the atoms in a molecule. It describes how the bonding electrons are distributed between the atoms, which can lead to the formation of regions with partial positive and negative charges within the molecule. Polarity occurs due to differences in electronegativity between the atoms involved in a chemical bond. Electronegativity is the tendency of an atom to attract electrons towards itself.