Hot coals refer to burning pieces of coal or charcoal that emit intense heat. There are several synonyms for the term 'hot coals,' including 'embers,' 'live coals,' 'burning coals,' 'smoldering coals,' and 'glowing coals.' These words perfectly describe the state of the coals, which are not just hot but also red or orange, emitting a warm and inviting glow. These words are commonly used in literature and poetry to add vividness to descriptions, such as "the smoldering coals of the campfire glowed brightly in the night." Regardless of the word used, these synonyms all convey the same sense of heat and warmth that hot coals offer.