Any clues to separate the word which you seek from the thousands that answer that vague specification?
Here's a few contenders from the Oxford Dictionary
A - agronomy
B - backcomb
C - catacomb
D - declaims
E - endogamy
F - fearsome
G - gendarme
H - handsome
I - intoneme
J - jokesome
K - ketoxime
L - larksome
M - machismo
N - nickname
O - odontome
P - panorama
Q - quarroms
R - ragworms
S - sagakomi
T - tantrums
U - undreamt
V - vagotomy
W - wailsome
X - xerogamy
Y - yanomami
Z - zymodeme
parables
briefing
resistor
Armchair is an 8 letter word. The 7th letter is i.
an 8 letter word for wealthy is ....... affluent
stockade
The word you're looking for is "homework." It has eight letters, with the fifth letter being 'w,' and both the second and last letters being 'o.'
dandruff
BACTRIAN : a two-humped camel.
parables
resistor
briefing
muscular :)
External Exciting
A 3D shape with 8 faces is called a "cuboid." In a cuboid, each face is a rectangle, and the shape has 12 edges and 8 vertices. The second letter is 'e' and the second to last is also 'e,' fitting the criteria you provided.
Humorist
imported, immunize, emperors