1. A sum of money given by an official body, such as a government: A subvention is granted especially to an institution of learning, study, or research.
2. The giving of help or support: A subvention can be useful for relieving a burden or of bestowing financial aid or assistance.
3. The granting of pecuniary aid for the support of an undertaking: In order for Tom to start his new business, he asked the government for a subvention or subsidy.