These are the most frequently used words in another edition of this book.
1998
2001
abu
activists
afghan
afghanistan
against
american
among
arab
arabia
associates
atta
attack
azzam
between
bin
called
camps
casting
city
close
country
different
during
early
egyptian
elements
even
family
far
first
forces
funds
government
group
however
individuals
international
involved
islam
islamic
islamists
jihad
kabul
known
laden
late
later
leaders
local
may
men
militants
military
modern
mohammed
months
movement
muslim
new
often
omar
own
pakistan
pakistani
part
people
peshawar
political
power
radical
ramzi
religious
saudi
senior
september
set
several
shadow
small
soviets
state
support
taliban
terror
terrorist
though
three
thus
time
told
training
two
university
used
war
world
years
young