noun
war widow
A woman whose husband died in war. The term is straightforward and carries a somber, respectful tone.
彼女は戦争未亡人として、一人で子供を育てた。
As a war widow, she raised her children alone.
Compound of 戦争 (war) and 未亡人 (widow). The term 未亡人 is a formal word for 'widow'.