All 6 Uses

legislature
in
To Kill a Mockingbird
(Edited)

Atticus met her when he was first elected to the state legislature.
p. 6.8

legislature = a group of elected representatives who create laws
Furthermore, I couldn't help noticing that my father had served for years in the state legislature, elected each time without opposition,
p. 36.6
...if I didn't [defend him] I couldn't hold up my head in town, I couldn't represent this county in the legislature, I couldn't even tell you or Jem not to do something again.
p. 86.8 *
As if that were not enough, the state legislature was called into emergency session and Atticus left us for two weeks.
p. 132.7
Atticus's gone all day and sometimes half the night and off in the legislature and I don't know what—
p. 162.2
There was one odd thing, though, that I never understood: in spite of Atticus's shortcomings as a parent, people were content to re-elect him to the state legislature that year, as usual, without opposition.
p. 279.5

Definitions:

(1) (legislature)
a group made up of government representatives (usually elected) that has the power to create laws
(2) (meaning too rare to warrant focus)