A structure with a roof and walls, e.g. a house. To construct a house, office, factory.

Hard; not easy; you need to work hard to do it.

Acting in a deliberate, cold way to get your way. To find an answer using mathematics.

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

From one end or side of something to the other. expressing movement into one side and out of other side of opening etc.. Over, in, across an entire thing or place.

Route for journey all the way around a place. Electronic equipment consisting of switches. To complete a journey all the way round an area.

After a long time or some difficulty.

Describes the way you are going, e.g. North.

Many of. more than two but not many. More than two but not a large amount.

Toward what is ahead; in front. Toward a future time; to a more advanced state. attacking sports player. send letter on to further destination.

Series of actions meant to achieve a goal. To work in an organized, active way towards a goal.

action of operating. Medical procedures involving surgeries.

Continuing to do something despite challenges.

To carry out an action well or successfully.

normal. what is commonplace or standard.