Words Ending in K: The Hard Stop That Crosswords Love
K at the end of a word makes a sound you can't miss — a hard, voiceless velar stop right at the back of your mouth. BACK, BOOK, DARK, LOCK, WORK. English is full of these, and many are among the most common words in the language. What's interesting is that the -CK spelling (BACK, DUCK, TRICK) only happens after short vowels, while -K alone follows long vowels and consonants (BOOK, DARK, MILK). This isn't a rule anyone teaches explicitly, but native speakers follow it without thinking.
For word games, K is worth 5 points in Scrabble — not spectacular, but solid. The sweet spot for -K words is in the 4- to 8-letter range, where you'll find the densest cluster of common plays. KAYAK (15 points), KNACK (15 points), and QUIRK (18 points) are standouts. In crosswords, -K endings appear often in short fills: INK, OAK, ASK, ELK. These three-letter K-enders are grid staples. One pattern to remember: many -K words come from Old English or Old Norse (BOOK, DARK, STORK), while -CK words tend to be Germanic in origin (BACK, CLOCK, STICK). For related ending sounds, check words ending in QI and words ending in Q. Players working through longer fills should try words starting with S, which produces SHACK, SHRIEK, STEAK, and dozens more -K finishers.
FAQ
When do you use -CK versus -K at the end of a word?
After a single short vowel, use -CK (BACK, DUCK, NICK). After a long vowel, diphthong, or consonant, use -K alone (BOOK, DARK, MILK). This rule is consistent across English with very few exceptions. For another spelling pattern worth knowing, check words ending in LY.
What K-ending words score highest in Scrabble?
QUAHAWK isn't real, but QUARTERDECK would be if it fit the board. In practice, QUIRK (18), KAYAK (15), and KAZACHOK (if you can play it) are top scorers. Pairing K with other mid-value tiles works well. See words starting with JO for JOCK and JOKE, two efficient K-enders.
Three-Letter Words (19)
ARKASKAUKDAKEEKELKICKILKINKIRKLEKOAKSUKTSKWOKYAKYOKYUKZEK
Four-Letter Words (200)
AMOKARAKBACKBALKBANKBARKBASKBEAKBECKBERKBILKBIRKBISKBOCKBONKBOOKBORKBOSKBUCKBULKBUNKBUSKCALKCARKCASKCOCKCONKCOOKCORKCUSKDANKDARKDAWKDECKDESKDHAKDICKDINKDIRKDISKDOCKDORKDREKDUCKDUNKDUSKFECKFINKFLAKFOLKFORKFUCKFUNKGAWKGECKGEEKGINKGOOKGOWKGROKGUCKGUNKHACKHAIKHANKHARKHAWKHECKHICKHOCKHOLKHONKHOOKHOWKHUCKHULKHUNKHUSKJACKJAUKJERKJINKJOCKJOUKJUNKKECKKEEKKICKKINKKIRKKLIKKONKKOOKKYAKLACKLANKLARKLEAKLEEKLICK
and 100 more — use the solver above to search
Five-Letter Words (187)
ABACKACOCKALACKAMUCKAPEAKAPEEKBATIKBAULKBLACKBLANKBLEAKBLINKBLOCKBOINKBRANKBREAKBRICKBRINKBRISKBROCKBROOKBRUSKCAULKCHALKCHARKCHECKCHEEKCHICKCHINKCHIRKCHOCKCHOOKCHUCKCHUNKCLACKCLANKCLEEKCLERKCLICKCLINKCLOAKCLOCKCLONKCLUCKCLUNKCRACKCRANKCREAKCREEKCRICKCROAKCROCKCROOKCRUCKDRANKDRECKDRINKDROUKDRUNKEBOOKFLACKFLANKFLASKFLECKFLICKFLOCKFLUNKFRANKFREAKFRISKFROCKGLEEKGOPIKGREEKHACEKHOICKKAIAKKAMIKKAPOKKAYAKKIOSKKLICKKNACKKNOCKKOPEKKULAKKYACKMUJIKPLACKPLANKPLINKPLONKPLUCKPLUNKPRANKPRICKPRINKPULIKQUACKQUARK
and 87 more — use the solver above to search
Six-Letter Words (119)
ANORAKANTICKARRACKATTACKBATTIKBEDECKBEMOCKBETOOKBEYLIKBIPACKBOHUNKBYTALKBYWORKCARACKCHABUKCOPECKCROJIKDAMASKDEBARKDEBEAKDEBUNKDEMARKDETICKDIBBUKDIKDIKDYBBUKEMBANKEMBARKEMBOSKGALYAKHIJACKIMBARKIMPARKKALPAKKOPECKMAMLUKMEDICKMOHAWKMOUJIKMUKLUKMUKTUKMUSICKMUZHIKMUZJIKNUBUCKNUDNIKOOMIAKOUTASKPADAUKPADOUKPHREAKREBECKREBOOKRECOCKRECOOKRECORKREDOCKRELINKRELOCKRELOOKREMARKREPACKREPARKREPERKRERACKRESEEKRESOAKRETACKRETOOKREWORKRHEBOKSANJAKSCHRIKSCHTIKSCREAKSHLOCKSHMUCKSHNOOKSHRANKSHRIEKSHRINKSHRUNKSHTICKSQUARKSQUAWKSQUEAKSTREAKSTREEKSTRICKSTROOKSTRUCKSUSLIKTAMBAKTHWACKTOMBAKTSKTSKTUGRIKUMIACKUNCOCKUNCORK
and 19 more — use the solver above to search
Seven-Letter Words (266)
AIRPARKAIRSICKAMTRACKANGAKOKARABESKARMLOCKARTWORKBANGKOKBANNOCKBARRACKBASHLYKBAWCOCKBEATNIKBECHALKBECLOAKBEDROCKBEDTICKBEFLECKBELLEEKBERSERKBESPEAKBETHANKBETHINKBIBCOCKBITTOCKBLAUBOKBLESBOKBONNOCKBOSHBOKBOYCHIKBULLOCKBULWARKBURDOCKBURLESKBUTTOCKBUYBACKCALPACKCAPROCKCARJACKCARRACKCARSICKCASSOCKCATWALKCHABOUKCHAMPAKCHEWINKCHIBOUKCHINOOKCOMATIKCOSSACKCOWLICKCUTBACKCUTBANKCUTWORKDAGLOCKDAYBOOKDAYWORKDEFROCKDERRICKDIEBACKDORHAWKDORNECKDORNICKDORNOCKEARLOCKEARMARKELFLOCKEYEHOOKEYEWINKFARTLEKFATBACKFETLOCKFINBACKFINMARKFORSOOKFOSSICKFUTHARKFUTHORKFUTTOCKGEMSBOKGEODUCKGERENUKGIMMICKGORCOCKGOSHAWKGUNLOCKGWEDUCKHADDOCKHAMMOCKHASSOCKHATRACKHAUBERKHAYCOCKHAYFORKHAYRACKHAYRICKHEMLOCKHENPECKHILLOCKHOGBACK
and 166 more — use the solver above to search
Eight-Letter Words (347)
AARDVARKABELMOSKAIRCHECKALMANACKANTILEAKANTILOCKANTIMASKANTIROCKANTITANKASTERISKBACKPACKBALDRICKBALLHAWKBALLPARKBANKBOOKBAREBACKBARESARKBASILISKBEADWORKBENEDICKBIGSTICKBILLHOOKBITSTOCKBLESBUCKBLOWBACKBLUEBOOKBLUEJACKBLUETICKBOATHOOKBOATNECKBOBOLINKBODYWORKBONTEBOKBOOKMARKBOOKRACKBOONDOCKBOOTJACKBOOTLICKBOSCHBOKBOSHVARKBOYCHICKBUHLWORKBULLNECKBUSHBUCKBUSYWORKCAKEWALKCALLBACKCAPEWORKCARETOOKCASEBOOKCASEWORKCASHBOOKCHAPBOOKCHARLOCKCHIPMUCKCHIPMUNKCLAWBACKCLAYBANKCOALSACKCOATRACKCODEBOOKCOLDCOCKCOMEBACKCOOKBOOKCOPYBOOKCOPYDESKCORNHUSKCREWNECKCRIBWORKCRYOBANKCUFFLINKDABCHICKDATABANKDATEBOOKDAYBREAKDEADLOCKDIESTOCKDIPSTICKDISFROCKDOMINICKDOWNLINKDOWNTICKDRAMMOCKDRAWBACKDROPKICKDUCKWALKDUCTWORKECOFREAKEYEBLACKEYEBLINKEYESTALKFACEMASKFALLBACKFARMWORKFASTBACKFATSTOCKFEEDBACKFINNMARKFIREBACKFIRELOCK
and 247 more — use the solver above to search
Nine-Letter Words (251)
AFTERDECKAMBERJACKANTIBLACKANTICRACKANTIKNOCKANTIQUARKANTISHARKANTISHOCKANTISTICKAPPLEJACKAUDIOBOOKAWESTRUCKBACKBLOCKBACKCHECKBACKTRACKBAILIWICKBEANSTALKBEEFSTEAKBENCHMARKBILLYCOCKBIRTHMARKBLACKBUCKBLACKCOCKBLACKJACKBOARDWALKBODYCHECKBOLSHEVIKBONEBLACKBOOTBLACKBOSCHVARKBRAINSICKBREAKNECKBRICKWORKBRUSHBACKBRUSHWORKBUSHWHACKBUTTSTOCKCAMELBACKCARRYBACKCELLBLOCKCHEAPJACKCHECKBOOKCHECKMARKCHOPSTICKCLASSWORKCLOCKWORKCOACHWORKCOOKSHACKCORNSTALKCRABSTICKCRACKBACKCRAFTWORKCROOKBACKCROOKNECKCROSSBUCKCROSSJACKCROSSTALKCROSSWALKCYBERPUNKDISEMBARKDRAWNWORKDREADLOCKDRUMSTICKDUMPTRUCKEARTHWORKFALSEWORKFANCYWORKFEEDSTOCKFENUGREEKFIELDWORKFIREBREAKFIREBRICKFIRETRUCKFLAGSTICKFLAREBACKFLASHBACKFLINTLOCKFOOTSTALKFOOTSTOCKFORECHECKFORESHANKFORESHOCKFORESPEAKFRAMEWORKFROSTWORKGANGPLANKGLASSWORKGOLDBRICKGOOSENECKGREENBACKGREENSICKGRILLWORKGUESSWORKGUIDEBOOKGUNNYSACKHALFTRACKHANDIWORKHATCHBACKHAVERSACKHEADSTOCK
and 151 more — use the solver above to search
Ten-Letter Words (85)
AFTERSHOCKALPENSTOCKANTIHIJACKBASKETWORKBLOODSTOCKBOTTLENECKBREASTWORKBRIDGEWORKBRIGHTWORKBROOMSTICKBUTTERMILKBUTTONHOOKCANDLEWICKCANVASBACKCORNERBACKCRACKAJACKCREWELWORKDISTELFINKDONKEYWORKDONNYBROOKDUMBSTRUCKFIDDLEBACKFINGERPICKFISHERFOLKGENTLEFOLKGREENSHANKGROUNDWORKGROUPTHINKHACKMATACKHAIRSTREAKHAMMERLOCKHEARTBREAKHERRENVOLKHOUSEBREAKHYDROCRACKKIBBUTZNIKKNICKKNACKKOLKHOZNIKKOMONDOROKLITTLENECKLUMBERJACKMASTERWORKMATCHSTICKMEADOWLARKMETERSTICKMOONSTRUCKMOTORTRUCKMOUNTEBANKMULTITRACKNEEDLEWORKNIGHTSTICKNONNETWORKPOCKETBOOKPOSTATTACKPROMPTBOOKREICHSMARKRUBBERNECKSALESCLERKSCHOOLBOOKSCHOOLWORKSCROLLWORKSHEEPSHANKSILVERBACKSKETCHBOOKSMOKESTACKSOURCEBOOKSTARSTRUCKSTUCCOWORKSUBNETWORKSUPERBLOCKSUPERFLACKSUPERSLICKSUPERSTOCKSUPERTHICKSUPPLEJACKSWITCHBACKTAPERSTICKTENTERHOOKTIMBERWORKTURTLEBACKTURTLENECKULTRASLICKUNDERTRICKWICKERWORKWONDERWORK
Eleven-Letter Words (38)
APPARATCHIKBIOFEEDBACKBREECHBLOCKCABINETWORKCANDLESTICKCHOCKABLOCKCOMPUTERNIKCOUNTERSINKCOUNTERSUNKCRACKERJACKDIAMONDBACKDOUBLESPEAKDOUBLETHINKELECTROWEAKFIDDLESTICKHALTERBREAKJOURNEYWORKKOMONDOROCKLACQUERWORKLATTICEWORKLEATHERBACKLEATHERNECKOUTPOLITICKPASSAGEWORKPLASTERWORKQUARTERBACKQUARTERDECKREALPOLITIKSHUTTLECOCKSINGLESTICKSPATTERDOCKSTAGESTRUCKSTEEPLEJACKSTICKLEBACKSTRINGYBARKTRELLISWORKTRESTLEWORKWEATHERCOCK
Twelve-Letter Words (7)
ANTIKICKBACKCOUNTERCHECKELECTROSHOCKGOBBLEDEGOOKGOBBLEDYGOOKKINNIKINNICKWALKINGSTICK
Thirteen-Letter Words (4)
COUNTERATTACKCOUNTERSTRUCKLAUGHINGSTOCKTHUNDERSTRUCK