The phrase "press one hand" refers to a simple action of using one's hand to apply pressure. Synonyms for this phrase include "apply pressure with one hand," "exert force with a hand," "push with one hand," "squeeze with a hand," and "compress with one hand." These synonyms convey a similar meaning to the original phrase and can be used in various contexts. The use of synonyms can help add variety and depth to one's writing, making it more engaging and interesting to readers. By using synonyms, writers can avoid repeating the same words, making their writing more effective and impactful.