verb
promote
pruh-MOHT/prəˈməʊt/
To advance the position or development of someone or something.
A demonstration promotes the board game by showing how it works.

Etymology
The pieces give the image 'move forward.' English first used the word for advancing someone to a higher position, then extended it to helping anything progress—the central idea behind supporting or publicizing something.
More examples
- Regular exercise promotes healthy growth in children.
- The company promotes experienced workers to leadership positions.
- The campaign promotes respect for people from different backgrounds.
Forms
promote · promotes · promoted · promoting
promotion noun — Advancement in rank or encouragement of development.
promoter noun — Someone who publicizes or supports something.