This tool relates English terms to concepts from the
SUMO
ontology by means of mappings to
WordNet synsets.

According to WordNet, the noun "length" has 5 sense(s).

105129565 size of the gap between two places; "the distance from New York to Chicago"; "he determined the length of the shortest line segment joining the two points".

105129201 the linear extent in space from one end to the other; the longest dimension of something that is fixed in place; "the length of the table was 5 feet".