A six letter word that starts with D and ends with A is dahlia.
There are ten options in total taken from the official Scrabble dictionary:
dadoes, daggas, dagoes, daises, dalles, damans, damars, dances,
danios, darers, darics, dashes, dashis, daters, dattos, datums,
daubes, daunts, davens, davies, davits, deairs, deaths, deaves,
debags, debars, debits, debris, debugs, debuts, debyes, decafs,
decals, decays, decors, decoys, dedans, defats, defers, defies,
defogs, degums, deices, deigns, deisms, deists, deixis, dekkos,
delays, delfts, deltas, delves, demies, demits, demobs, demons,
demurs, denars, denies, denims, depots, depths, derats, derays,
dermas, dermis, derris, deters, deuces, devels, devils, devons,
dewans, dewars, dexies, dhobis, dholes, dhotis, dhutis, dicers,
dicots, didies, didoes, dienes, dieses, diesis, dights, digits,
dikers, dildos, dimers, dinars, diners, dinges, dingus, diodes,
dipsas, dipsos, dirams, dirges, discos, discus, dishes, dismes,
disses, dittos, ditzes, divans, divers, divots, diwans, dixits,
dizens, djinns, dobies, doblas, dobras, dobros, dodges, dodoes,
dogeys, dogies, dogmas, doings, dolmas, dolors, donees, dongas,
donnas, donors, donuts, doofus, dopers, dories, dosers, dosses,
doters, doubts, doughs, doulas, doumas, douras, douses, dovens,
dowels, dowers, dowses, doxies, doyens, dozens, dozers, draffs,
drafts, drails, drains, drakes, dramas, drapes, drawls, dreads,
dreams, drears, drecks, driers, drifts, drills, drinks, drives,
droids, droits, drolls, drones, drools, droops, drouks, droves,
drowns, druids, drunks, drupes, druses, dryads, dryers, ducats,
dulias, dulses, dumbos, dunams, dunces, duomos, dupers, duress,
durocs, durras, durums, duties, duvets, dwarfs, dweebs, dwells,
dwines, dyings, dynels,
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -D-A-A. That is, six letter words with 2nd letter D and 4th letter A and 6th letter A. In alphabetical order, they are:
ideata
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern D-D-AN. That is, six letter words with 1st letter D and 3rd letter D and 5th letter A and 6th letter N. In alphabetical order, they are:
dodman
Agenda, alpaca, armada, Asthma and azalea are 6 letter words. They begin and end with the letter a.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern J-GJI-. That is, six letter words with 1st letter J and 3rd letter G and 4th letter J and 5th letter I. In alphabetical order, they are: jigjig
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern RIP-N. That is, five letter words with 1st letter R and 2nd letter I and 3rd letter P and 5th letter N. In alphabetical order, they are: ripen
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern L-CKI-. That is, six letter words with 1st letter L and 3rd letter C and 4th letter K and 5th letter I. In alphabetical order, they are: luckie
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern C-INT. That is, five letter words with 1st letter C and 3rd letter I and 4th letter N and 5th letter T. In alphabetical order, they are: clint
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern Z-RIL. That is, five letter words with 1st letter Z and 3rd letter R and 4th letter I and 5th letter L. In alphabetical order, they are: zoril
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-I--I-. That is, seven letter words with 1st letter I and 3rd letter I and 6th letter I. In alphabetical order, they are: idiotic
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-A-I. That is, five letter words with 1st letter I and 3rd letter A and 5th letter I. In alphabetical order, they are: imari
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern A-A---I. That is, seven letter words with 1st letter A and 3rd letter A and 7th letter I. In alphabetical order, they are: acanthi
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-A--A-. That is, seven letter words with 1st letter I and 3rd letter A and 6th letter A. In alphabetical order, they are: inangas
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-A--A--. That is, eight letter words with 1st letter I and 3rd letter A and 6th letter A. In alphabetical order, they are: inaurate
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-IA---. That is, seven letter words with 1st letter I and 3rd letter I and 4th letter A. In alphabetical order, they are: iliacus
database
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern A-I---A. That is, seven letter words with 1st letter A and 3rd letter I and 7th letter A. In alphabetical order, they are: acicula adipsia arietta
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern A-A-I. That is, five letter words with 1st letter A and 3rd letter A and 5th letter I. In alphabetical order, they are: abaci acari agami
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern A-IF-. That is, five letter words with 1st letter A and 3rd letter I and 4th letter F. In alphabetical order, they are: alifs
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-AM-. That is, five letter words with 1st letter I and 3rd letter A and 4th letter M. In alphabetical order, they are: imams
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern A-AA---. That is, seven letter words with 1st letter A and 3rd letter A and 4th letter A. In alphabetical order, they are: araaras ataatas