tamper

Pronúncia: ˈtæmpəʳ
    intransitive verb
  1. [lock] forçar.
  2. [document] falsificar, interpolar.
  3. [witness] subornar.
  4. [meddle in] entremetre's, ficar-se.
  5. to tamper with something [mess up] fer malbé alguna cosa, espatllar alguna cosa, malmetre alguna cosa.
  6. my car had been tampered with m'havien forçat la porta del cotxe.
  7. they are tampering with our plans ens estan espatllant els plans.