Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. greet someone arriving in polite or friendly way.

make previously unknown or secret information known to others.

perhaps.

planned enterprise. To stick out past the edge of something.

in opposition to.

Spacecraft designed to carry a crew into space.

From one end or side of something to the other. expressing movement into one side and out of other side of opening etc.. moving in one side and out of other side of.

cylindrical projectile that can be propelled to great height or distance by combustion of its contents. Weapons shaped like a long tube carrying bombs. increase very rapidly.

upright frames over which athletes jump. Athletic race whereby runners jump over fences. To run and jump over something.

preliminary version of machine or vehicle. make prototype of.

To make, or become, something better.

Having achieved wealth, respect, or social status.

Concerning an orbit. each of actual or potential patterns of electron density that may be formed in atom or molecule by one or more electrons.

An online messaging system. give call consisting of repeated light tremulous sounds.

act of launching. Acts of firing rockets into the air. To start a new project; start selling a product.