Declan

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The Japanese word

決意

is pronounced
ketsui | けつい
means
determination
Examples:
そして時折私が仕事と育児を両立させようという試みにくじけそうになったとき、私の決意を支える助けになったのは夫だった。
soshite tokiori watashi ga shigoto to ikuji o ryōritsu sa seyo u toyū kokoromi ni kujike sō ni natta toki, watashi no ketsui o sasaeru tasuke ni natta no wa otto datta.
And at times when I became discouraged with trying to reconcile working and bringing up children, it was my husband who helped to maintain my determination.
Examples sourced from tatoeba.org