substance produced by living organism which acts as catalyst to bring about specific biochemical reaction. Substance in living things helping chemical change.

Something written from spoken material.

series of actions towards achieving something. Sets of changes that occur slowly and naturally. To adopt a set of actions that produce a result.

need for particular purpose.

Telling someone off for doing something wrong. give lecture.

medicine that inhibits growth of or destroys microorganisms. Medicines that kill bacteria to fight infections.

Useful; not just for decoration.

process of translating words or text from one language into another.

action or process of making something active or operative.

Be able to trust; rely on..

Person switching from one belief system to another. To switch from a religion, belief etc. to another.

A new event related to a previous event.

A path or way that you can walk.

Substance which is one of the fundamental constituents of the nucleus of the cell and which forms the supports of the hereditary message.

(of shooting) carried out to protect exposed person from enemy. thing used to protect, decorate, or conceal something else. (Police or military) to protect from attack.