Some words (I don't know them all) with the second letter U:
Some four letter words with a second letter U are:auraburncurbcuredulldumbeurofundguruhugejumpjunklumpluremuchmutenudeoustpullpurepushrulerumpruinruserushrustsuchsurftune
Some four-letter words with the second letter "o" include: book, food, foot, pool, look, loop, cool, and soon. These words all have the commonality of having the letter "o" as the second letter in their spelling.
Some three letter words with the second letter W are:awleweoweowlowntwo
Some words that have the second letter U are:augustaurabullbutchercuddlecutdunedurableeuphemismEuropefullfungungutterhurlhutjudgejumpjuryjustkudoslunchluremuchmudmullmurdernudgenullnuptialouchouroutpuddingpunchpushquailquarryquartquartzquoteruderuinrulerushruthlesssuddensuitsullensuppersuretunneltummyturkeyvulnerablevulture
When arranging words alphabetically one will list words beginning with the letter first letter of the alphabet then progressively moving through the alphabet. Arranging words alphabetically will put all words starting with the letter b in the second position.
Some six letter words with p as the second letter are opener, operas, sparse, and apiece.
Some four letter words with second letter U and fourth letter O are:autoeurojudokudoouzo
ESTATEADESTEAERATEALERTSASSETSAVIATEBYPATHDELETEELECTSERECTSERRATAEYELETHYATTSIDEATENYMETSORNATERELATESEDATE These are all words that fit the description. Source: OneAcross
acebackblackcorrectchalicechoicediceeffaceenforcefactforcegracehenceicejuicelacylacklocklacklickmicemalicenicenieceoncepalaceplacepricepacericerockrackstackslackslickslicetracetactvoicewhack
Five letter words with second letter x are:excelexertextraaxiomexpel
Some five letter words with the second letter A are:BaconbadgebanjoCadrecandyCanondancedaffydaisyeagerearlyearthfablefacetfaithgablegamuthabithairyhappyjauntkabobkayakkazoolabellancelaserMagmamatchmaybenachonastynaveloasispaperparchpartyrabidradioraisesaladsaltySatantabletainttalonvaletvalidvalvewaistwagonwateryachtyahooZaire
Some five letter words with the second letter U are:audioaugerbuglebunchcubiccurrydummydutchfudgeguanoguidehumidjudgekudzulucidlunchmusicnudgenuttyouterpulsepursequietquiltrustysupertuliptunicwurstyucca