systematic investigation into and study of materials and sources. To study in order to discover new ideas and facts.

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.

separate or respective. more than two but not many. More than two but not a large amount.

extremely delicate and light in way that seems not to be of this world.

The way in which the parts of a system or object are arranged or organized, or a system arranged in this way. To plan, organize, or arrange the parts of something.

High-level educational institution; college.

Division of a larger part or organization.

branch of technology and industry concerned with both aviation and space flight.

To start a career or an education.

season after winter and before summer, in which vegetation begins to appear, in northern hemisphere from March to May. Coils of metal that lessen impact, e.g. on cars. move or jump suddenly or rapidly upwards or forwards.

Using or concerning machines. working parts of vehicle.

sound produced by sudden rush of air or liquid. move with rushing sound.

person who is studying at university or other place of higher education. People studying at school.

of very great size or extent.

(Person) helping another, usually as a job. Person who helps another, usually as a job.