to battle, to fight, to wage war / to compete (in a match, for example) / to contend (for one's own interests) / (figuratively) to get through with one's sufferings or difficulties

(used after an adjective in the te-form) unbearable / unable to lose to; no match for

an enemy / an opponent, a competitor / (historical) the other party in a lawsuit / 的: (historical) in the red-light district, a term of reference used between prostitutes and customers

an enemy / revenge, vengeance / opponent (of the game or conflict) / (archaic, obsolete) marriage partner

的: (historical) (by extension from the red-light district usage) term of third-person reference: that guy, that one

enemy / foe

to rival

結う: braid, fasten / 言う: Alternative spelling of いう

優: a female given name / 佑, 友, 悠: a male given name

勇: courage / 有: existence / 夕: evening / 佑: protection / 優: extraordinary / 侑: assist / 裕: richness / 幽: tranquility; blackness