assert

1. (reflexive) To insist on the legitimacy of one's rights, opinion, etc; not to allow oneself to be dismissed; to ensure that one is taken into consideration; to make oneself respected; to be assertive. See assert oneself.Examples: "Since going to therapy, I've found it much easier to assert myself."reflexive

2. (programming) To declare that a condition or expression must be true at a certain point in the source code (in some cases causing the program to fail if it is not, as a safeguard).

3. (electronics) To set a signal on a line using a voltage or electric current.