to put a piece of equipment somewhere and connect it so that it is ready to be used

finally, after a series of things have happened

a hard black mineral which is dug out of the ground and burnt to produce heat

great comfort, especially as provided by expensive and beautiful things. / Something expensive that is pleasant to have but is not necessary. /  Something that gives you a lot of pleasure but cannot be done often.

(the use of) a new idea or method.

to take the place of something, or to put something or someone in the place of something or someone else.