guarantee against (something)

guarantee against (something)

1. To confirm that something, usually something negative, will not happen. I certainly hope that nothing catastrophic happens, but I can't guarantee against it—none of us can.
2. To confirm or certify that an item or product will not break or deteriorate, typically for a certain length of time. In this usage, a noun or pronoun is used between "guarantee" and "against." I hope the company guaranteed your fancy new blender against breaking for at least a year.
See also: guarantee
Farlex Dictionary of Idioms.

guarantee something against something (for something)

to certify that something will not fail, break, or wear out, usually for a period of time. We guarantee this radio against defects for one year. I bought a service contract to guarantee my car against defects.
See also: guarantee

guarantee against something

to certify that something bad will not happen. No one can guarantee against that happening. I can't guarantee against something going wrong.
See also: guarantee
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • all for the best
  • a crack at (someone or something)
  • (you) wanna make something of it?
  • a whack at (something)
  • (I) wouldn't (do something) if I were you
  • a ghost at the feast
  • a slew of (something)
  • (there's) no fear of (something)
  • (do) (you) want to make something of it?
  • a/the feel of (something)