6 letter words:
arrear6,
5 letter words:
areca7,
carer7,
crare7,
racer7,
arear5,
rarer5,
4 letter words:
acer6,
acre6,
care6,
carr6,
raca6,
race6,
arar4,
area4,
rare4,
rear4,
3 letter words:
ace5,
arc5,
caa5,
car5,
rec5,
are3,
ear3,
era3,
err3,
2 letter words:
aa2,
ae2,
ar2,
ea2,
er2,
re2,