mono
mate
mull
miss
make
meet
meek
mean
mass
mars
mine
math
mutt
made
mace
maze
main
mane
bad, bag, bah, bam, ban, bap, bar, bat, bay, cab, cad, cam, can, cap, car, cat, caw, cay, dab, dad, dam, dap, daw, day, ear, eat, fab, fad, fan, far, fat, fax, gab, gad, gag, gal, gap, gar, gas, gat, gay, had, hag, ham, has, hat, haw, hay, jab, jag, jam, jar, jaw, jay, lab, lad, lag, lam, lap, lat, law, lax, lay, mac, mad, mag, man, map, mar, mas, mat, maw, max, may, nab, nag, nah, nap, nay, oaf, oak, oar, oat, pad, pal, pan, pap, par, pas, pat, paw, pax, pay, rad, rag, rah, ram, ran, rap, rat, raw, ray, sac, sad, sag, sap, sat, saw, sax, say, tab, tad, tag, tam, tan, tap, tar, tat, tau, taw, tax, van, vat, wad, wag, wan, war, was, wax, way, yam, yap, yaw, zap
bat, cat, day, eat, fat, gay, hat, Ian, jay, Kay, lay, may, nay, oat, pay, ray, say, tar, vat, way, yap, zap
That's a tough one. Hmm...
AMP
add
Rue.
obi
Aqi
Some 3 letter words with the letter "r" in the middle are: are, bra, bro, arm, url, and ere.
amo
see see
pig
Bay
Fat.
A four letter word with RA in the middle: bran.
ers, urs