striving to achieve or attain something in face of difficulty or resistance. To try very hard to do something difficult.

(of pop or rock music) performed or recorded with acoustic rather than electrically amplified instruments. To pull out the plug of (electrical appliances).

different from one another. more than one. more than one.

continuing or valid to final destination. From the beginning of something until the end. Over, in, across an entire thing or place.

Connected with sound or hearing. sound properties of room.

Someone whose job is designing machines, buildings. design and build.

device for connecting pieces of equipment that cannot be connected directly.

verbal or written answer. Replies to part of a song or reading, as in church.

system of two-way communication by loudspeaker.

Where you play or your role on a sports team. put or arrange in particular position.

comfort someone at time of grief or disappointment.

engaging in speech. action of talking. To say things or ideas to someone with words.

person employed to look after technical equipment or do practical work in laboratory. People whose job is to maintain, repair machinery.

A senior student at school. observe and check quality over time.

having gained knowledge or skill in particular field over time. To gain knowledge by doing things.