relief measure; mitigation measure
A formal term for a measure taken to reduce or alleviate a burden, risk, or negative impact. Often used in legal, policy, or business contexts.
The government announced relief measures for the tax burden.
With this mitigation measure, the burden on small and medium-sized enterprises is expected to decrease.
軽減 is the act of reducing or lightening a burden, while 軽減措置 specifically refers to the concrete measure or policy implemented for that purpose.
措置 is a general term for a measure or step taken, whereas 軽減措置 narrows the focus to measures aimed at reduction or relief.
Compound of 軽減 (keigen, 'reduction, lightening') and 措置 (sochi, 'measure, step'). The exact historical derivation is uncertain, but the word is a straightforward Sino-Japanese compound.