The period during which a blast furnace is continuously in operation.
A series of operations undertaken to achieve a set goal.
Consistently ride in races for a racing season.
To take part in a campaign.
A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government.
The breaching of the skin barrier.
The spread of cancer cells, bacteries and such to the organism.
The entry without consent of an individual or group into an area where they are not wanted.