in way that lasts or remains unchanged indefinitely.

extending or moving uniformly in one direction only. in straight line. part of something that is not curved.

not same as another or each other.

For a reason.

synthetic material made from organic polymers. Stiff but often rather flexible man-made materials.

Business of transporting goods or orders to places. To transport goods by boat, truck or plane.

process or period of changing from one state or condition. undergo or cause to undergo process or period of transition.

Use or knowledge of science in industry etc..

Of or relating to heat or a source of heat. Rising body of warm air, e.g. in gliding.

manufactured article or substance.

planned or conceived in detail for specific purpose. To plan in a particular way to fulfill a purpose.

Act of giving the right to a property to another. To move something from one place to another.

forming or viewed as unit apart or by itself. individual items of clothing suitable for wearing in different combinations. To move things away from each other.

cylinder that rotates about central axis and is used in various machines and devices to move. Tools shaped like a tube used for crushing things.

used to introduce statement that contrasts with or seems to contradict something that has been said previously. (Used to introduce a counter statement).