1. [n]  placing in medical care in a hospital
2. [n]  insurance that pays all or part of a patient's hospital expense
3. [n]  the condition of being treated as a patient in a hospital; "he hoped to avoid the expense of hospitalization"
4. [n]  a period of time when you are confined to a hospital; "now they try to shorten the patient's hospitalization"

HOSPITALIZATION is a 15 letter word that starts with H.