The Vietnamese word "nhẳn" generally means "intermittent" and is often used to describe a condition or feeling that comes and goes rather than being constant. This word is commonly used in medical contexts, particularly when referring to pain or discomfort.
In more advanced contexts, "nhẳn" can be used to describe not just physical sensations but also situations or events that happen sporadically. For instance, you might say something like "Cơn mưa nhẳn" to refer to rain that comes and goes.
In summary, "nhẳn" is a useful Vietnamese word to describe intermittent occurrences, especially in the context of pain.