Intro- and bonus
Bring into a group, to meet
Introduce
Intra-
Breaking up a conversation
Interrupt
The perimeter
Circumference
Interfere
Shy person
Introvert
Existing or occurring within your own mind
Intrapersonal
Between or among nations of the world
International
Repetitive movements
Circulation
shape of a circle
Circular
Examine one's own thoughts or feelings
Introspect
Occurring within a single galaxy
Intragalactic
Break between acts of a play
Intermission
To travel around the world
Circumnavigate
The complete path that an electric current travels along
Circuit
Inwardly
Intro-
Involving students from within the same school
Intramural
Communicate or work together
Interact
Bypass
Circumvent
Insert or interrupt between other things
Interject
Movement of genes, from one species to another
Introgression
Located inside a cell
Intracellular
Helps translate languages
A situation
Circumstance
within a vein
Intravenous