1. An insect or similar organism; such as, a centipede or an earwig; usually a small insect: There's a bug in Ian's soup.

John said, "Please close the door, you're letting another bug in."

2. A defect in a computer code or with the routine operation of a program: Dwight and Alicia found a bug in the word-processing program which made it impossible to do anything.

Hazel said she would be trying to work the bug, or bugs, out of the program system as soon as she could find the cause of the bug.

3. An electronic listening device; such as, a hidden microphone or wiretap, used to secretly listen to and to record the conversations of a person or people: The authorities planted a bug in the suspect's room.

The secret service put a bug in the man's apartment in case he tried to contact other suspected terrorists.

1. To bother or to annoy someone: Janet said, "Please don't bug me about closing the door."

Madeline told Willis not to bug her and to leave her alone.

2. Putting a hidden microphone in a room in order to secretly hear what people are saying: The police received the judge's authorization to bug the guy's apartment.

Everyone should be forewarned that certain governments are continually trying to bug their phones, and their computers are constantly being bugged; as well as, other areas of their living and working areas.