If it is extremely hot or cold, it is very or greatly hot or cold.
At the utmost point, edge, or border; outermost; utmost; farthest; most remote; at the widest limit.
quality or state of being at an utmost edge, point, or limit
A supporter of extreme doctrines or practice; one who holds extreme opinions.
The extreme part; the utmost limit; the farthest or remotest point or part; as, the extremities of a country.
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