The letters in REPEATING make 388 words of two letters or more. The longest is REPEATING at 9 letters, and the highest-scoring is REPEATING at 12 points.
No other single word uses all 9 letters of REPEATING. REPEATING has 9 letters: 4 vowels and 5 consonants, worth 12 points before any board bonuses.
9-letter words 1
8-letter words 7
aperient10gratinee9interage9perigean11petering11retaping11tapering11
7-letter words 27
arenite7epigean10granite8grantee8gratine8greaten8ingrate8integer8negater8painter9parting10peatier9peering10perinea9pertain9prating10preeing10reagent8reaping10reginae8repaint9retinae7tangier8tearing8trainee7treeing8trepang10
6-letter words 55
aigret7argent7arpent8earing7eating7engirt7enrage7enrapt8entera6entire6entrap8ergate7gainer7gaiter7garnet7genera7gerent7gratin7ingate7neater6negate7panier8pantie8parent8parget9paring9patine8peeing9pereia8pineta8pinger9pirate8pterin8rapine8raping9ratine6rating7reagin7regain7regent7regina7repeat8repent8repine8retain6retape8retina6retine6taping9taring7teeing7teniae6trepan8triage7triene6
5-letter words 91
aerie5agene6agent6agree6anger6antre5aping8apter7arete5arpen7atrip7eager6eagre6eaten5eater5egret6enate5enter5entia5etape7gaper8garni6gater6genet6genie6genip8genre6giant6grain6grant6grape8grate6great6green6greet6gripe8gript8inapt7inept7inert5inter5irate5neper7niter5nitre5pager8paint7parge8paten7pater7patin7peage8peart7perea7peter7pieta7pinta7prang8prate7preen7print7ragee6ranee5range6regna6reign6renig6rente5repeg8repin7retag6retia5retie5riant5ripen7taper7tapir7targe6tenge6tenia5terai5terga6terne5tiger6tinea5tinge6tragi6train5treen5trine5tripe7
4-letter words 107
agee5ager5agin5airn4airt4ante4anti4aper6earn4eger5erne4etna4gaen5gain5gait5gane5gape7gate5gean5gear5gene5gent5geta5gien5girn5girt5gite5gnar5gnat5gran5grat5gree5grin5grip7grit5nape6neap6near4neat4neep6nipa6nite4page7pain6pair6pane6pang7pant6pare6part6pate6peag7pean6pear6peat6peen6peer6pein6peng7pent6peri6pert6pian6pier6piet6pina6pine6ping7pint6pirn6pita6prat6pree6prig7rage5ragi5rain4rang5rani4rant4rapt6rate4reap6rein4rent4rete4ring5ripe6rite4tain4tang5tape6tare4tarn4tarp6tear4teen4tepa6tern4tier4tine4ting5tire4trap6tree4trig5trip6
3-letter words 81
age4ain3air3ait3ane3ani3ant3ape5apt5are3art3ate3ear3eat3eng4era3ere3erg4ern3ert3eta3gae4gan4gap6gar4gat4gee4gen4get4gie4gin4gip6git4gre4ire3nae3nag4nap5nee3net3nip5nit3pan5par5pat5pea5pee5peg6pen5per5pet5pia5pie5pig6pin5pit5rag4ran3rap5rat3ree3reg4rei3rep5ret3ria3rig4rin3rip5tae3tag4tan3tap5tar3tea3tee3teg4ten3tie3tin3tip5
2-letter words 19
ae2ag3ai2an2ar2at2en2er2et2in2it2na2ne2pa4pe4pi4re2ta2ti2
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.