The term "pressed one hand" is used to describe the act of applying pressure with one hand onto a surface or object. There are several synonyms that can be used in place of this phrase. One alternative is to use the term "placed one hand," which still conveys the idea of a single hand being applied to a surface but without the connotation of pressure. Another option is to use the term "pushed down with one hand," which adds a bit more emphasis on the act of applying force. Other synonyms include "applied pressure with one palm," "rested one hand on," and "exerted force with one hand".