the length, area, range etc (of something)
range, magnitude
Cases of word usage
1) to examine, judge, to what extent people or things are similar or not similar (compare)
2) a measurement of any sort (especially length, height and width); extent (dimension)
3) to the right or necessary degree, extent etc (enough)
4) an extent of a piece of land or a building along its front (frontage)
5) the complete extent or scope of anything (gamut)
6) to the extent of 1/2 (half)
7) to a great extent (immoderately)
8) the frequency, extent etc with which something occurs or affects things (incidence)
9) a line or point that may not or cannot be passed; greatest or smallest amount, extent etc of what is possible (limit)
10) having much extent in space (length); to want, wish for, a person, thing very much (long)
