Convert (verb)

1. Change the form, character, or function of something.
2. Change one's beliefs, opinions, or allegiance.
3. Change (a unit of measurement) to another.

Origin:

Late middle english: from latin convertere, from con- "completely" + vertere "to turn".

Examples:

1. They are converting the factory into a hotel.
2. He converted to Buddhism.
3. The company is converting to a new system.
4. The software can convert the file format.
5. She converted her savings into stocks.