also: ウィル
Refers to a person's strong inner drive, determination, or conscious intention. Often used in psychological, philosophical, or motivational contexts.
See also: うぃる
He overcame the hardship through the power of his strong will.
Legal term for a document stating how one's property is to be distributed after death. Equivalent to 遺言 (ゆいごん) in native Japanese.
Without will, it's difficult to achieve your goals.
I asked a lawyer to draft my will.
His will stated that all his assets would be donated to charity.
意思 is the common word for one's intention or wish in everyday and legal contexts, whereas ウイル is a much rarer loanword emphasizing strong inner drive.
Standard katakana spelling for the English loanword 'will'.
Alternate katakana spelling; less common but still encountered.
Loanword from English 'will', adopted into Japanese with the katakana spelling ウイル (or ウィル). The legal sense directly mirrors the English usage.