Synonyms of the word

intragroup

• adj. Taking place within a group, especially within a social group.

internal

• adj. inside of something.
• adj. within the body.
• adj. concerned with the domestic affairs of a nation, state or other political community.
• adj. concerned with the non-public affairs of a company or other organisation.

intramural

• adj. Within the walls; within one institution, particularly a school.
• adj. Within the substance of the walls of an organ.
• n. A (usually sports) competition between teams belonging to the same school.