I think you are thinking of the phrase  the other way around , which does essentially mean the opposite, but in a specific way. The specific nature of the other way around is that it means that doing what you say in the opposite direction is correct, not necessarily the exact opposite.
You can offer your kitten either dry food, canned food, or both. Be sure to choose food which is designed for kittens. They require a diet which is especially rich in protein, calcium, and other nutrients. Cat food that is for adults is not sufficient.
Between the fourth and sixth week, gradually transition the weaning kittens to dry food, supplementing with formula if needed. Use canned food or dry kitten food mixed with water; at first, add a lot of water, and then reduce the amount of water as the kitten matures.