put (decision, plan, agreement, etc.) into effect.

Difficult or impossible to get or get into.

(Of a problem) without an answer yet being found.

account given of particular matter. Official statements about some things. To officially present yourself on arrival.

To examine in order to prevent errors/a problem.

occurring before flight in aircraft.

relating to composition, page layout, and other work done on publication before it is actually printed.

Upset emotionally.. overturn.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

To create electricity, heat, energy and power.

outline as seen from side. To write a short description of a person or group.

title or brief explanation accompanying illustration or poster. Explanation written next to a picture in a book. To add an explanation next to a picture in a book.

Not present; not available. To do without something.

Main; important. Special report in a magazine or paper. have as prominent attribute or aspect.

Occasion when something can be seen, e.g. a movie. To explain or teach how something is done.