限り

N4 必ず成功するとは限りません。 Kanarazu seikou suru to wa kagirimasen. It is not always certain to succeed.

N3 〜とは限らない to wa kagiranai Indicates something is not necessarily always true, attaches to a sentence, means it does not always mean that

N1 限定 gentei limit, restriction N1 権限 kengen power, authority, jurisdiction N1 局限 kyokugen limit, localize N2 限度 gendo limit, bounds N2 無限 mugen infinite N3 制限 seigen restriction, limit, control N3 限る kagiru limit, restrict, be limited N3 期限 kigen deadline, time limit, term N3 限界 genkai limit, bound, boundary

N3 限 gen / kagi.ru, kagi.ri, -kagi.ri limit, restrict, to best of ability