"Putting sea" is a phrase that refers to the act of sailing or navigating through the sea. Some synonyms for "putting sea" could include "sailing the ocean," "navigating the open water," or "cruising the waves." Other phrases that could be used to indicate a journey at sea might include "setting sail," "embarking on a voyage," or "launching into the deep blue." When describing the act of putting sea, it may also be helpful to use adjectives to paint a vivid picture, such as "braving the tumultuous waves" or "calmly charting a course through the peaceful waters".