In "Synonym Squares" in the August 1979 Word Ways, Tom Pulliam gave examples using Websterian words of four to eight letters in length. If one goes beyond Webster, it is possible to build squares that are considerably larger. The first synonym square exhibits twelve words or phrases pertaining to NEUROANATOMY; nine are in Webster's, and the other three are in standard medical references. The second synonym square exhibits fourteen generic names for drugs in current use; all are major headings in the Generic and Chemical Name Index of the Physician's Desk Reference. The word Pharmaceutical can be found reading downward on the eighth letters.
Wolpow, Edward R.
"Giant Synonym Squares,"
Word Ways: Vol. 12
, Article 19.
Available at: http://digitalcommons.butler.edu/wordways/vol12/iss4/19