ANNEX ANTISEX APEX ARUSPEX AUSPEX BICONVEX BIFLEX CAREX CAUDEX CELOTEX CIMEX COANNEX CODEX COMPLEX CONVEX CORTEX CULEX CYBERSEX DESEX DEX DIPLEX DUPLEX EX FEDEX FLEX FOURPLEX FUNPLEX HARUSPEX HEX HUMIDEX IBEX ILEX INDEX INTERREX INTERSEX KEX KLEENEX LATEX LEX LUREX MEGAPLEX MIREX MUREX NARTHEX OCTUPLEX PERPLEX PERSPEX PLEX POLLEX PONTIFEX PREX PYREX QUADPLEX REANNEX REFLEX REINDEX REMEX REX SCOLEX SILEX SILVEX SIMPLEX SPANDEX SPINIFEX SUBINDEX SUPERSEX TELEX TRIPLEX TUBIFEX UNISEX UNSEX VERTEX VEX VIDEOTEX VORTEX