| A | B |
| Interactive | Action between people and groups |
| Interfere | Do get into someones activities that has nothing to do with you |
| Intermittent | Stopping and starting |
| Intersect | To meet or cross |
| Interval | Time between two events or space between two objects |
| Transact | giving money for something or one thing for another |
| Transfer | to move from one person or place to another |
| Transfusion | the injection of blood from one person to another |
| Transmit | to send or pass something from one person to another |