obcecar - to blind
objetar - to object
obliterar - to obliterate, to erase
obrar - to build, to work
obsequiar - to give a gift
observar - to observe
obsesionar - to obsess, to haunt
obstinar - to insist
obturar - to block
ocasionar - to cause, to bring, to out
ocupar - to take up, to concern, to take care
ocultar - to hide
