* Intramuscular: within a muscle
* Intracellular: within a cell
* Intravenous: within a vein
* Intraluminal: within the lumen (hollow space) of a tube or vessel
* Intranasal: within the nose
* Intracranial: within the skull
* Intrapersonal: within a person
* Intragroup: within a group
* Intrauterine: within the uterus
* Intraspecific: within a species
* Intrathoracic: within the chest cavity
* Intrahepatic: within the liver
* Intralingual: within the tongue
* Intracardiac: within the heart
* Intravenous: within a vein
* Intramembranous: within a membrane
* Intrapulmonary: within the lungs
* Intragastric: within the stomach
* Intramural: within a wall (often referring to sports within a school or institution)
This is not an exhaustive list, but it gives you a good starting point. Remember that "intra-" means "within" or "inside," so you can use this to figure out the meaning of other words with this prefix.