The phrase "turning of the tide" refers to a significant change in a situation or trend, often for the better. In essence, it means a shift in circumstances that alters the course of events. Synonyms for this expression include "shift," "swing," "transformation," and "reversal." Other similar phrases that convey the same meaning include "change of fortune," "upturn," "reversal of the trend," and "breakthrough." These idioms can help to accentuate the occurrence of a positive change or an unexpected turn of events, providing hope and encouragement to those facing difficult circumstances.