The term "re-turns" means something that is returned or given back to its original place or state. The antonyms for this word can be words like keep, hold, retain, and hang onto. These words signify the idea of not returning something, rather keeping it or holding onto it for a longer time. When we hold onto something, we are preserving it or keeping it in our possession. On the other hand, when we return something, we are relinquishing it or giving it up. Therefore, the antonyms of "re-turns" define the opposite concept of not returning something, instead keeping it for further use or preservation.