- 内部事务 nèibùshìwù internal affairsinternal affairs; domestic matters
- 内部参考 nèibùcānkǎo internal reference documentrestricted document available only to specific high-ranking officials in the government or party
- 内部斗争 nèibùdòuzhēng internal power strugglea conflict or competition for power within an organization or group
- 内部矛盾 nèibùmáodùn internal contradictionContradictions inherent within a thing or system, regarded as the internal cause of its development
- 内部网 nèibùwǎng intraneta private computer network used within an organization
- 人民内部矛盾 rénmínnèibùmáodùn contradictions among the peopleNon-antagonistic contradictions occurring on the basis of the fundamental identity of the people's interests, as opposed to [[敌我矛盾|敵我矛盾|di2 wo3 mao2 dun4]]
- 内部网络 nèibùwǎngluò intranetinternal computer network used within an organization or company