Meaning of constructional homonymity

construc'tional homonym'ity

Pronunciation: [key]
— Gram. Gram.
  1. the property of a string of morphemes that is susceptible of two or more syntactic analyses, as in Flying planes can be dangerous, planes may be either the object of flying or the subject of can.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.