adjective, American English, informal - (usually of a woman) silly, not very serious, likely to forget things
noun, formal - something that is an unfair or unreasonable burden or inconvenience to someone
adjective - opposed to the use or development of nuclear weapons or nuclear energy
adjective - designed to detect, prevent, or remove computer viruses and other malicious software
verb, formal - to die or pass away, especially in a formal or legal context
verb - to convert coded or encrypted information into a readable or understandable form
adverb - in a delicate or precise manner, often difficult to perceive or understand