1. The process of gaining or strengthening backing, endorsement, or assistance from people or groups for a cause, idea, person, or initiative
The campaign is building support for the new environmental policy.
A campanha está construindo apoio para a nova política ambiental.
2. To gradually develop consensus or agreement among stakeholders or the public
We are building support for this project by talking to key influencers.
Estamos construindo apoio para este projeto conversando com influenciadores-chave.