Mr. F the academic word list (a d)

hierarchy  n. system with grades of authority or status from the lowest to the highest
highlight  n. best, most interesting or most exciting part of something
hypothesis  n. idea or suggestion that is based on known facts and is used as a basis for reasoning or further investigation
identical  adj. the ~ the same
identify  v. ~ sb/sth as sb/sth show, prove, etc who or what sb/sth is; recognize sb/sth (as being the specified person or thing)
ideology  n. ideas that form the basis of an economic or political theory or that are held by a particular group or person
ignorant  adj. ~ (of sth)knowing little or nothing; lacking education or information; unaware
illustrate  v. supply with pictures, diagrams, etc
image  n. copy of the shape of a person or thing, esp one made in stone or wood; statue
immigrate  v. ~ enter a foreign country in order to live there permanently
impact  n. hitting of one object against another
implement  n. tool or instrument
implicate  v. ~ sb show that sb is involved in sth, esp a crime
implicit  adj. ~ implied, but not expressed directly; not explicit
imply  v. suggest (sth) indirectly rather than state it directly; hint
impose  v. ~ sth place (a penalty, tax, etc) officially on sb/sth
incentive  n. ~ thing that encourages sb to do sth; stimulus
incidence  n. ~ of sth extent to which sth happens or has an effect
incline  v. ~ towards sth lean or slope in the direction of sth
income  n. money received over a certain period, esp as payment for work or as interest on investments
incorporate  v. ~ sth (in/into sth) make sth part of a whole; include