certificar
cer.ti.fi.car
[sertifik′ar]
vtd+vint+vpr
1 to certify.
2 make sure: certificamo-nos da sua ajuda / we made sure of her help.
3 certificar-se to convince oneself, have the assurance: ele certificou-se de que esse era o caminho a seguir / he made sure that this was the right way to go.