1. by using public announcements, notices, or promotional campaigns to inform or reach a wide audience
The company announced the job opening through public advertisement in major newspapers.
A empresa anunciou a vaga de emprego por meio de publicidade pública nos principais jornais.
2. via commercial or promotional messaging displayed in public spaces or media channels
The campaign was launched through public advertisement on television and social media.
A campanha foi lançada por meio de publicidade pública na televisão e nas redes sociais.