Within a sovereign state or country. / (US) Within a state.

(US) A highway completely within a state (not an interstate).

Unwillingness to change one's views or to agree.

In or into an artery.

Within (or into) an artery

(physics) Describing a property within a band (magnetic, spectral etc)

Within the cavity of the abdomen

(anatomy) Situated within a joint

(medicine) The insertion of sperm directly into a woman's uterus, typically as a way of increasing the chances of conception.

Within a single bank (financial institution).