味道 (wèi dào) is the general word for 'taste' or 'flavor' of food, and can also mean 'smell' (neutral or negative) or a figurative 'feeling' in a situation. Compared to 口味 (kǒu wèi), which focuses on a person's preference or a food's specific flavor profile, 味道 is broader and more neutral. 气味 (qì wèi) is specifically 'smell/odor' (usually physical, not food), while 滋味 (zī wèi) is more literary and often figurative for an 'experience'.