To impede, retard, or interfere with; hinder.
To get in the way of so as to hide from sight.
To block or fill (a passage) with obstacles or an obstacle. See synonyms at block.
To coerce into religious conversion.
To advertise one’s religious beliefs; to convert (someone) to one’s own faith or religious movement or encourage them to do so.
To advertise a non-religious belief, way of living, cause, point of view, (scientific) hypothesis, social or other position, political party, or other organization; to convince someone to join such a cause or organization or support such a position; to recruit someone.