i. in English

i.

⇄

i.
1. interest.
2. intransitive.
3. island.

I.

⇄

I.
an abbreviation for the following:
1a. Emperor (Latin, ?Imperator).
b. Empress (Latin, ?Imperatrix).
2. independent (in politics).
3. (Biochemistry.) inosine.
4a. island or islands.
b. isle or isles.