contact with facts or events. To gain knowledge by doing things.

process of doing something. Some things that a person or things do. To take action to do something.

half-pillar or half-pier attached to wall to support arch. To have a good reaction to e.g. medical treatment.

of immediate relevance, interest, or importance owing to its relation to current events. postage stamp forming part of set or collection with designs connected with same subject.

operated by largely automatic equipment. To use machines to do tasks instead of people.

charming and attractive. To hire someone for a task or job.

Speaking in a casual way.

commercial activity. Companies formed for making profit.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

action or fact of owning, maintaining, or protecting something. To do something that you have promised or agreed.

branch of mechanics concerned with motion and forces. Ways that people behave and function in a group.

bring into existence.

part of army closest to enemy.

person employed to look after technical equipment or do practical work in laboratory.