There are a number of synonyms for the word "hospitalisations" that can be used depending on the context of the sentence. Examples include "admissions to hospital," "inpatient care," "hospital stays," "hospitalization," "medical treatment in hospital," and "being hospitalized." These synonyms can be used in a variety of situations where a person is receiving medical care in a hospital, including emergency situations, planned surgeries, and long-term treatments. Using these synonyms can help to add variety to writing and avoid repetition, while still conveying the same meaning.