Note in a book, etc. giving source of information. To cite a piece of research in speech or writing.

Powerful group who control and organize things. To shape, work on something, using a device.

Greatest in degree/nature/quality; absolute best. rich cream sauce.

A thing to hold up or prevent from falling down. bear all or part of weight of.

item or object. Pieces of some things, e.g. clothing. bind to undergo training period.

(of military vehicle or ship) covered with tough metal layer as defense against attack. To cover something in metal to protect it.

machine converting power into motion. Machines that changes energy into mechanical motion.

political, religious, or commercial assignment. Housing for a religious group working overseas.

Placed or set, as a jewel set in a ring. To start (an attack) against an enemy.

maintenance of constant difference in frequency between two or more connected circuits or components. To use marks to follow a wild animal.

type of aircraft which derives both lift and propulsion from one or more sets of horizontally revolving overhead rotors. Aircrafts with spinning blades at the top. transport by helicopter.

successfully bring about or reach desired objective or result.