noun
completeness in both; fulfilling both duties
Used for achieving two ideals or obligations at once, such as loyalty and filial piety, or study and sports. Often appears in formal or literary contexts.
忠孝両全は難しいと昔から言われている。
It has long been said that achieving both loyalty and filial piety is difficult.
noun which may take the genitive case particle 'no'
advantageous to both sides; mutually beneficial
Describes a situation or outcome that benefits both parties. Less common than the noun sense; often used in formal writing.
両全の策を探る必要がある。
We need to seek a solution that is advantageous to both sides.
Compound of 両 (both) and 全 (complete, perfect). The exact historical derivation is uncertain, but the word is used in formal contexts to express the ideal of achieving two things perfectly.