warranty (suomeksi)

takaus (s)
takuu (s: a guarantee that a certain outcome or obligation will be fulfilled; security / legal: an agreement which states that the goods or property in question will be in exactly the same state as promised)
vakuus (s)
vakuutus (s)
takuusitoumus (s: a guarantee that a certain outcome or obligation will be fulfilled; security)
valtuutus (s: justification or mandate to do something)