Let's summarize what's out there in the Travel Insurance industry, and perhaps that will clear things up.
Contestant #1: Travel Medical Insurance, and its brother Travel Medical Evacuation Insurance: covers medical expenses, such as hospital costs, treatment, and possibly medication in the event you are injured while travelling. Medical Evacuation, possibly called Repatriation, gets you out safely by air ambulance if local facilities are insufficient to treat you. If you die while travelling, repatriation will cover the cost of getting your body back home.
Contestant #2: Trip Cancellation Insurance: covers the non-refundable costs you have paid, such as non-refundable, non-transferable airline tickets, prepaid hotel stays, and other such, in the event of a "covered event." No, "because you feel like it" is not a covered event. Examples of covered events are losing your job (where it became known after you purchased your tickets and insurance), death or critical illness of yourself or of immediate family, official travel warning (earthquake warning, terrorism warning) from consular affairs after you've paid for your trip and insurance, and flooding in your house, rendering it uninhabitable.
Contestant #3: Trip Interruption Insurance: covers the cost of getting you back home after you've started your trip in the event of a "covered event." Examples are similar to those of Trip Cancellation.
Contestant #4: Trip Delay Insurance: covers the cost of rebooking, hotels, prepaid event forfeitures, food, and catching up to a tour in the event that you misconnect a flight through no fault of your own, or even miss getting to the airport on time due to circumstances such as terrible unforeseeable traffic.
Contestant #5: Baggage Insurance: covers the cost of replacing critical items in your baggage in the event it gets lost or delayed. Examples include getting a new suit if you had a suit in your luggage and required it in the immediate term, such as a business meeting next day.
Contestant #6: Accidental Death and Dismemberment Insurance: pays out (notice that this is not "covers the cost") if you lose life, limbs, or sight while you are on a common transport carrier, such as a passenger plane where you are a normal passenger with a company that takes anybody that pays up. Taxis, for example, fall under this umbrella.