The word "candle-meter" may not be commonly used in everyday conversation, but there are plenty of synonyms that can come in handy if you need to describe the intensity of light emitted by a candle. For example, you could use the term "candela" which is the standard unit of measurement for luminous intensity. Other synonyms include "lux", "lumen", and "foot-candle". These terms refer to the amount of light that falls on a surface per unit area and are commonly used in the scientific and engineering fields. Regardless of which synonym you choose, they all refer to the same basic concept: the brightness of a candle's flame.