"C caught fire" is a popular phrase that suggests a sudden and intense outbreak of fire, often referring to a dangerous situation. However, there are plenty of synonyms for this phrase that can be used in different contexts and circumstances. Some possible alternatives include "ignited," "ablaze," "enflamed," "inflamed," "kindled," "incinerated," "scorched," "charred," and "smoldered." Each of these synonyms may imply a different degree of severity, duration, or speed of fire, so the choice of word can make a big difference in the tone and impact of the message. Whether describing a natural disaster, a domestic accident, or a metaphorical flame, be sure to choose the right synonym for the occasion.