Feeling doubt about a person, place, or thing.

Allowed to do because you have official permission. To give official permission to do something.

standard of something as measured against other things of similar kind.

used to single out one person or thing over all others.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

Being very attractive or appealing physically.

Medicine or method to make someone healthier.

flowing naturally or supplied to building through pipes and taps. action or movement of runner. To flow in a certain direction, like a liquid.

Able to be entered, reached or used.

To keep a promise; do what you say you would.

referring to signals/information represented by discrete values of quantity.

Existing in all places at all times for all people. thing having universal effect or application.

person or organization that pays for or contributes to costs involved in staging sporting or artistic event in return for advertising. People that support the passage of a new law. To help someone succeed by giving them money.

engaging in speech. action of talking. To make a formal speech about something.