1. to make something more widely accessible or obtainable; to increase the range of access to a product, service, or resource
The company decided to broaden availability of their products by opening new distribution channels.
A empresa decidiu ampliar a disponibilidade de seus produtos abrindo novos canais de distribuição.
2. to expand the scope or reach of something that was previously limited or restricted
We need to broaden availability of education to underserved communities.
Precisamos ampliar a disponibilidade da educação para comunidades carentes.