musu
1.

To apply strong steam to an ingredient in order to heat it thoroughly and make it ready to eat.

2.

To create a sensation of oppressive heat and humidity, often described as muggy or sultry, resulting in discomfort due to high temperature and low air circulation.

3.

In a military context, to use a signal fire to demonstrate readiness or intent to engage in battle, signifying heightened morale among troops.

ふかfukasu
1.

To apply strong steam to food ingredients in order to heat them thoroughly and make them suitable for consumption.

2.

To create a sensation of oppressive warmth and humidity, often without adequate airflow, leading to a muggy or sweltering environment.

3.

To use steam as a source of heat in cooking, particularly for specific dishes like rice or egg custard, enhancing the texture and flavor of the food being prepared.