n. 1. The duration of a syllable, or of the vowel or diphthong it contains, regarded as a phonological characteristic; the phonological correlate of duration. In the IPA, a greater value of length is marked by a following :. 2. (also quantity) A...

Symbol SI units Equivalent m Metre 39.37 inches km Kilometre (1,000 metres) 0.621 mile mm Millimetre (one-thousandth of a metre) 0.03937 inch μm Micrometre (1 thousand-thousandth of a metre)   nm Nanometre (1 thousand-millionth of a metre)...

Length is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end. This may be distinguished from height, which is vertical extent, and width or breadth, which are the...