According to SOWPODS2, there are 543 words between 2 and 15 letters which end with the letter X:
2-letter words:
ax, ex, ox
3-letter words:
box, cox, dex, dux, fax, fix, fox, gox, hex, hox, kex, lax, lex, lox, lux, max, mix, mux, nix, nox, pax, pix, pox, pyx, rax, rex, sax, sex, six, sox, tax, tex, tix, tux, vex, vox, wax, wex, wox, yex, zax, zex
4-letter words:
apex, brux, calx, coax, crux, doux, eaux, faix, falx, faux, flax, flex, flix, flux, grex, hoax, ibex, ilex, jeux, jinx, jynx, lanx, lynx, minx, onyx, oryx, plex, prex, roux, ulex, yunx
5-letter words:
addax, admix, affix, annex, beaux, bemix, bolix, borax, calix, calyx, carex, choux, cimex, codex, comix, culex, cylix, desex, detox, dewax, embox, enfix, fedex, forex, galax, hapax, helix, hyrax, immix, index, infix, kylix, latex, limax, linux, lurex, malax, mirex, murex, panax, phlox, podex, pyrex, radix, redox, redux, refix, relax, remex, remix, retax, rewax, salix, silex, sorex, telex, unbox, unfix, unmix, unsex, untax, varix, vibex, vitex
6-letter words:
adieux, afflux, auspex, banjax, bembex, bembix, biflex, bijoux, bollix, bollox, bombax, bombyx, boyaux, carfax, carfox, caudex, cervix, chenix, climax, coccyx, commix, confix, convex, cortex, cowpox, deflex, dentex, diplex, dogfox, duplex, earwax, efflux, forfex, fornix, frutex, hallux, handax, hatbox, haybox, hotbox, icebox, imbrex, implex, influx, isolex, jawbox, larnax, larynx, lummox, magnox, mastix, matrix, meninx, muskox, nontax, orifex, outbox, outfox, pegbox, phenix, pickax, poleax, pollex, prefix, premix, pretax, prolix, reflex, reflux, scolex, silvex, skybox, smilax, spadix, sphinx, sphynx, storax, styrax, subfix, suffix, suplex, surtax, syntax, syrinx, teabox, tettix, thorax, tutrix, unisex, vernix, vertex, volvox, vortex
7-letter words:
abrasax, antefix, anthrax, antisex, antitax, apoplex, apteryx, aruspex, bandbox, bateaux, beatbox, beeswax, boombox, bostryx, broadax, bureaux, cadeaux, carapax, cashbox, celotex, chamoix, choenix, coalbox, coannex, complex, conflux, coteaux, deindex, distrix, editrix, equinox, farebox, feedbox, firebox, flummox, fowlpox, funplex, gateaux, gearbox, gravlax, hellbox, homosex, humidex, jambeux, jukebox, kickbox, kleenex, lockbox, mailbox, milieux, minimax, narthex, oratrix, outjinx, overlax, overmix, overtax, packwax, panchax, paradox, pemphix, perplex, perspex, phalanx, pharynx, phoenix, pillbox, postbox, postfix, posttax, princox, reaffix, reannex, rectrix, reindex, reseaux, salpinx, saltbox, sandbox, sealwax, seedbox, shoebox, showbox, simplex, soapbox, sonovox, spandex, talkbox, tectrix, telefax, teletex, toolbox, tortrix, treewax, triplex, tubifex, vaudoux, victrix, vitraux, woadwax, woodbox, woodwax, workbox
8-letter words:
aftertax, anthelix, appendix, aviatrix, bandeaux, batteaux, berceaux, biconvex, bobbysox, bordeaux, brainbox, breadbox, camaieux, carnifex, chapeaux, chateaux, cicatrix, cineplex, clackbox, clangbox, coturnix, couteaux, creatrix, crucifix, curatrix, curtalax, cybersex, disannex, earthwax, econobox, epicalyx, fabliaux, fourplex, genetrix, genitrix, giambeux, haruspex, heretrix, heritrix, homeobox, horsebox, horsepox, intermix, interrex, intersex, jambeaux, janitrix, loosebox, lunchbox, manteaux, matchbox, megaplex, microlux, millilux, mirepoix, morceaux, nouveaux, octuplex, opopanax, orthodox, paintbox, parallax, phorminx, plateaux, ponceaux, pontifex, precieux, quadplex, quincunx, rondeaux, rouleaux, sardonyx, saucebox, scrumpox, smallpox, snuffbox, soundbox, spinifex, subindex, superfix, supermax, supersex, supertax, sweatbox, swinepox, tableaux, toadflax, tonneaux, tractrix, transfix, trumeaux, undertax, videotex, watchbox, waterpox, zelatrix
9-letter words:
aboideaux, aboiteaux, antihelix, bisectrix, decomplex, dictatrix, directrix, disclimax, dorsiflex, earthflax, fellatrix, flambeaux, gogglebox, gravadlax, heterodox, homoeobox, letterbox, mediatrix, metroplex, multiplex, neocortex, pepperbox, piscatrix, pompholyx, prehallux, prepollex, priedieux, prothorax, rattlebox, religieux, retroflex, shadowbox, spondulix, strongbox, subclimax, subcortex, submatrix, superflux, testatrix, tinderbox, tuckerbox, unperplex
10-letter words:
anticlimax, bordereaux, chalumeaux, chatterbox, chickenpox, circumflex, coadjutrix, contraplex, dominatrix, gaspereaux, generatrix, googolplex, groundprox, inheritrix, initiatrix, mesothorax, metathorax, moderatrix, nectocalyx, noncomplex, oropharynx, prattlebox, precentrix, protectrix, quadratrix, quadruplex, separatrix, spectatrix, subbureaux, superhelix, thunderbox, trisectrix, trousseaux, unorthodox
11-letter words:
androsphinx, arbitratrix, chalcedonyx, consolatrix, fricandeaux, hydrothorax, hypopharynx, merveilleux, nasopharynx, negotiatrix, neoorthodox, nonorthodox, overcomplex, progenitrix, prolocutrix, proprietrix, prosecutrix, sceuophylax, speculatrix, thoroughwax
12-letter words:
conservatrix, heteroduplex, hypercomplex, plagioclimax, pneumothorax, portmanteaux
13-letter words:
archaeopteryx, cephalothorax, hieracosphinx, immunocomplex, improvisatrix, interlocutrix, primogenitrix, ultraorthodox
14-letter words:
administratrix
Ajaxflaxcoaxhoaxflexplexapex.
firefox
Calyx, codex and cylix are 5 letter words. They begin with c and end with x.
THere are 303 words that begin with the letter X.
There are no 6 letter words that end in COP.
Xi
Xerox
Ajaxflaxcoaxhoaxflexplexapex.
There are many words that end with the letter x such as borax, apex, fix, sphinx, fox, crux and onyx. However, there are no words that end with the letter RX.
ex... EVERYONE KNOWS THAT!
firefox
Xenox, tax, max, fax, fox
Calyx, codex and cylix are 5 letter words. They begin with c and end with x.
Note is one of the words that end in o t e.AsymptoteChicaloteEntrecoteEucaryoteEukaryoteFreewroteHandwroteOveremoteOverwrotePapilloteRedingoteSheepcoteTypewroteUndervote8 Letter words that end with oteAnecdoteAntidoteBanknoteCreosoteDovecoteFistnoteFolkmoteFootnoteHeadnoteIsophoteLepidoteLocomoteMateloteMisquoteMiswroteOutquoteOutwroteOvervoteRavigoteSkywroteSymbioteWoodnote7 Letter words that end with oteAchioteAmnioteChayoteCompoteConnoteCowroteEndnoteEpazoteEpidoteGarroteKeynoteMyosoteOutvotePromoteQuixoteRewroteUnquote6 Letter words that end with oteCapoteCenoteCoyoteDemoteDenoteDevoteGaroteGemotePeyoteRemoteRevoteSapoteZygote5 Letter words that end with oteAzoteEmoteQuoteShoteSmoteWroteZlote4 Letter words that end with oteCoteDoteMoteNoteRoteToteVote
THere are 303 words that begin with the letter X.
Four letter words that end with U:ecrugurulieutofuthoubeaumenututu
Some words with the letter i at the end of a syllable are:librarydinosaurfamilyfinallyradio