IPA: /nɒnˈtəˌbækoʊ/
KK: /nɑnˈtəbækoʊ/
Not related to tobacco or not containing tobacco.
Many people are choosing nontobacco products for a healthier lifestyle.
Nontobacco is formed from "non-" (meaning not) and "tobacco" (from Spanish *tabaco*, which refers to the plant used for smoking). The word "nontobacco" means something that is not tobacco or does not contain tobacco.
Think of 'non-' meaning 'not' to remember that 'nontobacco' refers to something that is not tobacco.