brown-bagˈbrown-bag verb [intransitive] American English 
1to bring your lunch to work, usually in a brown paper bag2to bring your own alcohol to a restaurant that does not serve alcohol—brown-bagging noun [uncountable]
1to bring your lunch to work, usually in a brown paper bag2to bring your own alcohol to a restaurant that does not serve alcohol—brown-bagging noun [uncountable]- institution
- institutional
- institutionalize
- institutionalized
- in-store
- instruct
- instruction
- instructional
- instructive
- instructor
- instrument
- instrumental
- instrumentalist
- instrumentally
- instrumentation
- instrument panel
- insubordinate
- insubordination
- insubstantial
- insufferable
- insufferably
- insufficiency
- insufficient
- insufficiently
- insular