Definition of "sectional"

Relating to a section.  examples

Separating into sections.  examples

Relating to conflict between areas.  examples

An item of furniture composed of modular sections; usually specifically a sectional sofa.  quotations  examples

(aviation) A sectional chart, a type of map used for navigation in the air.  examples

(sports) A tournament or match held at the section level, typically between the regionals and the championships.  examples

(music) A band sectional, in which one section of a band or orchestra practices separately.  examples