They are the top row of a standard keyboard.
You spell it, "d-e-s-e-m-p-l-e-o."
Post office
The next two letters are 'O' and 'C'. They are the first letters of the periods and systems in geologic time, from most recent to oldest. Quaternary, Tertiary, Cretaceous, Jurassic, Triassic, Permian, Pennsylvanian, Mississippian, Devonian, Silurian. The next two are Ordovician and Cambrian.
p-h-i-l-l-e-p-e-s
P-R-E-N-D-R-E
POEM
The letters c e k o p t can be rearranged to make the word pocket.
a, b. d. e, g, o, p and q.a, b. d. e, g, o, p and q.a, b. d. e, g, o, p and q.a, b. d. e, g, o, p and q.
power
opiate
opponent
chopped
explode
Those letters will spell opera.
teapot
telescope
Y O J E P O Hhoop, hop, hope, hoe, hey, hejoey, joy