There are 14 words that end with 'plexes'.
| plexes | duplexes |
| complexes | funplexes |
| perplexes | simplexes |
| triplexes | megaplexes |
| fourplexes | quadplexes |
| metroplexes | multiplexes |
| googolplexes | heteroduplexes |
Note: These 14 words that end with 'plexes' are found from the USA & Canada version of the tournament Scrabble word list.