- complex
- orthodox
- pre-tax
- unorthodox
- convex
- lax
- reflex
- duplex
- single-sex
- after-tax
- dot-matrix
- uniplex
- heterodox
- same-sex
- mixed-sex
- chocolate-box
- black-box
- concavo-convex
- other-sex
- heptaplex
- antipox
- onyx
- ultraorthodox
- isoflux
- nonmultiplex
- implex
- surcomplex
- ultra-Orthodox
- sextuplex
- pseudoconvex
- strong as an ox
- intercomplex
- moelleux
- supermax
- max
- Greek Orthodox
- hypercomplex
- midsex
- multiduplex
- Manx
- monoplex
- nonvortex
- semiduplex
- biredox
- Aframax
- Eastern Orthodox
- Suezmax
- half-duplex
- prolix
- intraduplex
- diplex
- organophotoredox
- ultracomplex
- New Panamax
- double-convex
- Chinamax
- single-lens reflex
- nonorthodox
- transsex
- interphalanx
- hyperconvex
- noncomplex
- postsex
- transition matrix
- supramax
- overcomplex
- Malaccamax
- photoredox
- tricomplex
- nonsimplex
- pseudodox
- octuplex
- overlax
- DX
- nonconvex
- nonduplex
- full duplex
- bicomplex
- redox
- open box
- nonredox
- antifox
- distfix
- intersex
- deflex
- wax
- mintox
- big-box
- convexoconvex
- aux
- singleplex
- polymatrix
- biconvex
- Latinx
- paracomplex
- perplex
- multicomplex
- decomplex
- nonretroflex
- orthoprax
- concavoconvex
- quasiconvex
- nonreflex
- antivax
- plano-convex
- posttax
- affreux
- antivaxx
- doux
- planoconvex
- antisex
- borax
- downflex
- triplex
- intrasex
- retroflex
- as crazy as a fox
- Conservadox
- flux
- better than sex
- oplax
- not the sharpest tool in the box
- chocolate box
- nonlatex
- intervertex
- aftertax
- Chicanx
- pretax
- intravertex
- interhelix
- faux
- devex
- mixfix
- sly as a fox
- V2X
- subconvex
- varimax
- post-Panamax
- mox nix
- incomplex
- septuplex
- multimatrix
- antitax
- contraplex
- SX
- anti-vax
- intramatrix
- invex
- polyconvex
- intervortex
- antismallpox
- mousseux
- nonvertex
- Oriental Orthodox
- crazy as a fox
- antireflux
- nex
- interduplex
- Orthodox
- crazy like a fox
- simplex
- half duplex
- right stochastic matrix
- unisex
- abox
- multiplex
- semiconvex
- same sex
- close as wax
- intracomplex
- fullduplex
- icebox
- uncomplex
- nonmatrix
- œil-de-perdrix
- handymax
- inorthodox
- prenex
- quadruplex
- Panamax
- antiorthodox
- pentaplex
- Seawaymax
- approx
- XXX
- circumflex
- redux
- presex
- letterbox
- equiconvex
- XXXX
- nonsex
Note: these words have been obtained from Wiktionary and have been classified and improved through automated computer linguistics processes.