"A la mort" is a French phrase that translates to "until death." Some synonyms for this phrase include "till death do us part," "for life," "eternity," and "everlastingly." These terms are often used in wedding vows to express the commitment of two people to stay together until the end of their lives. In addition, the phrase "in sickness and in health" can also be considered a synonym for "a la mort," as it represents the pledge to support and care for each other through all challenges and hardships. Ultimately, these synonyms exemplify the depth and permanence of true love and dedication.