Translation guide
The English word "intensity" covers several related ideas: strength, force, concentration, and emotional depth. Japanese expresses these with different words depending on what is intense.
Describing how strong or powerful something like light, sound, heat, or an earthquake is.
General word for strength or intensity of physical phenomena. Can be used for light, sound, wind, etc.
Please adjust the intensity of the light.
The intensity of the earthquake was magnitude 7.
Emphasizes violence or severity, often for natural phenomena like storms, rain, or battles.
The intensity of the storm is increasing.
Degree or level, often used in technical or formal contexts.
Please indicate the intensity of the pain on a scale.
Referring to how concentrated or dense something is, like color, flavor, or a substance.
Describing strong feelings, passion, or fervor.
How vigorous or strenuous an action or process is.
強さ (つよさ) is the most general term for strength/intensity. 激しさ (はげしさ) implies violence or severity, often for natural phenomena or emotions. 濃さ (こさ) is specifically for concentration or density of substances, colors, flavors.
intensity of light
intensity of the storm
intensity of flavor
The intensity of the scent is different.
I feel the intensity of her affection.
彼の仕事に対する熱意はすごい。
The intensity of his dedication to work is amazing.
運動の強度を上げすぎないでください。
Don't increase the intensity of the exercise too much.