v.
1) to ~ convincingly
2) ( B ) ('to explain by showing') they ~d the new invention to us
3) ( D ; intr. ) ('to protest by marching') to ~ against (the students ~d against the government)
4) ( D ; intr. ) ('to display support by marching') to ~ for (to ~ for lower taxes)
5) ( L ; to) ('to prove by showing') we ~d (to them) that a new computer would save considerable time
6) ( Q ) ('to explain by showing') she ~d how the computer works