Live coals refer to glowing embers that still have heat and the ability to ignite flames. There are several synonyms for this term, including hot coals, glowing coals, burning embers, smoldering ashes, and red-hot embers. These terms are often used interchangeably, but slight nuances may differentiate them. Hot coals suggest a high temperature, while glowing coals imply a strong, vibrant appearance. Burning embers and smoldering ashes connote a slow burn, while red-hot embers highlight a particularly intense heat. Regardless of the term used, live coals are an important ingredient in many types of fires, from roaring campfires to cozy indoor hearths.