The phrase "is ablaze" refers to a situation where something is burning or on fire. There are many synonyms for this phrase, including "is on fire," "is burning," "is engulfed in flames," "is alight," "is in flames," "is incinerated," "is scorched," "is charred," "is ignited," and "is blazing." These synonyms can be used interchangeably to convey the idea of a fire or burning situation. Additionally, these words can be modified to describe the intensity or size of the fire, such as "raging inferno," "flickering flame," or "smoldering embers." Overall, the many synonyms for "is ablaze" offer a range of ways to communicate a burning situation.