You can say either way: "mazai urao" or "mazai lo".

udo

uhllo

ulluco

ulmo

ultimo

umbo

unamo

unco

underdo

undergo

undo

ungaro

unhero

unio

unnegro

unrococo

unto

updo

upgo

upo

uramido

uramino

urao

uredo

ureido

uvito

* udal * udos * ueys * ufos * ughs * ugli * ugly * ukes * ulan * ules * ulex * ulna * ulus * ulva * umbo * umma * umph * umps * unai * unau * unbe * unce * unci * unco * unde * undo * undy * unis * unit * unto * upas * upby * updo * upgo * upon * upsy * urao * urbs * urde * urds * urdy * urea * ures * urge * uric * urns * urps * ursa * urus * urva * used * user * uses * utas * utes * utis * utus * uvae * uvas * uvea

Based on the result from WordSolver.net the following english words can be made with the letters provided:

DOURAH.

AROHA, DOUAR, DOURA, DUROY, HARDY, HOARD, HOARY, HODJA, HYDRA, HYDRO, RAJAH, RAYAH, RHODY.

ADRY, AHOY, AJAR, AURA, AYAH, DAUR, DORY, DOUR, DRAY, DUAR, DURA, DURO, HAAR, HADJ, HARD, HARO, HAUD, HOAR, HORA, HOUR, HOYA, JOUR, JUDO, JUDY, JURA, JURY, OARY, ODAH, ORAD, RAJA, RAYA, ROAD, URAO, URDY, YAAR, YARD, YAUD, YODH, YOUR.

AAH, ADO, AHA, ARD, ARY, AUA, AYU, DAH, DAY, DOH, DOR, DOY, DRY, DUH, DUO, HAD, HAJ, HAO, HAY, HOA, HOD, HOY, JAR, JAY, JOR, JOY, JUD, OAR, ODA, ORA, ORD, OUD, OUR, RAD, RAH, RAJ, RAY, RHO, RHY, ROD, RUD, RYA, UDO, URD, YAD, YAH, YAR, YOD, YOU.

AA, AD, AH, AR, AY, DA, DO, HA, HO, JA, JO, OD, OH, OR, OU, OY, UH, UR, YA, YO, YU.

Obviously some words are more proper than others and there could be some missing, but that should be most if not all of the possible words.

A _ _ A

abba, acca, acta, agha, agma, aiga, Alba, alfa, alga, alma, amia, amla, anga, Anna, anoa, ansa, anta, aqua, arba, area, aria, arna, arpa, asea, atma, atua, aula, aura

A _ _ E

abbe, able, abye, ache, acme, acne, acre, adze, agee, ague, aide, aine, ajee, akee, alae, albe, alee, alme, aloe, amie, ance, ante, apse, arle, arse, aune, awee, axle, ayre

A _ _ I

abri, acai, anti, arti, asci

A _ _ O

aero, afro, agio, alco, alko, also, alto, ambo, ammo, anno, apso, arco, arvo, auto

A _ _ U

aglu, aitu

E _ _ A

egma, eina, ekka, Emma, epha, etna, eyra

E _ _ E

eale, ease, eave, ecce, eche, edge, eide, eine, else, epee, erne, esne, esse, ethe, euge, evoe, eyne, Eyre

E _ _ I

elhi, etui, euoi

E _ _ O

ecco, echo, eddo, ergo, euro, expo

E _ _ U

ecru, emeu

I _ _ A

idea, ilea, ilia, ilka, inia, iota, isba, isna, ixia

I _ _ E

idee, idle, isle, iure

I _ _ I

impi, inti

I _ _ O

info, ingo, inro, into

I _ _ U

iglu

O _ _ A

obia, octa, odea, ohia, okra, okta, olea, olla, orca, orra, ossa, ouma, oupa

O _ _ E

oboe, oche, ogee, ogle, ogre, olpe, once, onie, oose, ooze, orfe, orle, owre, owse

O _ _ O

odso, oleo, olio, onto, oppo, ordo, orzo, otto, ouzo

O _ _ U

ombu

U _ _ A

ulna, ulva, upta, urea, ursa, urva, uvea

U _ _ E

unbe, unce, unde, urde, urge, uvae

U _ _ I

unai, unci

U _ _ O

umbo, unco, undo, unto, updo, upgo, urao

U _ _ U

unau

A _ _ A

ABBA, acca, acta, agha, agma, aiga, Alba, alfa, alga, alma, amia, amla, anga, Anna, anoa, ansa, anta, aqua, arba, area, aria, arna, arpa, asea, atma, atua, aula, aura

A _ _ E

abbe, able, abye, ache, acme, acne, acre, adze, agee, ague, aide, aine, ajee, akee, alae, albe, alee, alme, aloe, amie, ance, ante, apse, arle, arse, aune, awee, axle, ayre

A _ _ I

abri, acai, anti, arti, asci

A _ _ O

aero, afro, agio, alco, alko, also, alto, ambo, ammo, anno, apso, arco, arvo, auto

A _ _ U

aglu, aitu

E _ _ A

egma, eina, ekka, Emma, epha, etna, eyra

E _ _ E

eale, ease, eave, ecce, eche, edge, eide, eine, else, epee, erne, esne, esse, ethe, euge, evoe, eyne, Eyre

E _ _ I

elhi, etui, euoi

E _ _ O

ecco, echo, eddo, ergo, euro, expo

E _ _ U

ecru, emeu

I _ _ A

idea, ilea, ilia, ilka, inia, iota, isba, isna, ixia

I _ _ E

idee, idle, isle, iure

I _ _ I

impi, inti

I _ _ O

info, ingo, inro, into

I _ _ U

iglu

O _ _ A

obia, octa, odea, ohia, Okra, okta, olea, olla, orca, orra, ossa, ouma, oupa

O _ _ E

Oboe, oche, ogee, ogle, ogre, olpe, once, onie, oose, ooze, orfe, orle, owre, owse

O _ _ O

odso, oleo, olio, onto, oppo, ordo, orzo, otto, ouzo

O _ _ U

ombu

U _ _ A

ulna, ulva, upta, urea, ursa, urva, uvea

U _ _ E

unbe, unce, unde, urde, urge, uvae

U _ _ I

unai, unci

U _ _ O

umbo, unco, undo, unto, updo, upgo, urao

U _ _ U

unau