Act of giving a formal talk about something.

passed on from one person or place to another. To broadcast by using signals to a radio/TV.

action of measuring depth of body of water. To say in a clear deliberate manner.

Being varied or different from each other.

To keep your attention, concentration on one thing.

showing of film, video, or television programme. To examine to find something, e.g. best candidate.

person qualified to practise medicine. A medical doctor.

character representing speech sound. Messages you put in an envelope and send by post. inscribe letters on.

consequence, effect, or outcome of something. Some things produced through tests or experiments. To be the outcome of other causes and effects.

of great vertical extent. at or to considerable height.

sympathetically aware of other people's feelings. When you get the meaning correctly; comprehension. To know the meaning of language, what someone says.

causing death. A huge financial success (often in business). To end the life of a person or other living thing.

infective agent that is able to multiply only within the living cells of a host. Files secretly put on computers to cause harm.

list of recorded songs or pieces of music chosen to be broadcast on radio show.

localized physical condition in which part of body becomes reddened, swollen, hot.