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.
opiate
power
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.
opponent
chopped
explode
The animal that can be formed using the letters y, r, s, o, p, and e is a "pyros." However, this is not a recognized animal name. If you're looking for a common animal name, there isn't one that fits those exact letters without rearranging or adding others.
teapot
Those letters will spell opera.
telescope