Sentence:  This is brought out in the common religious ethos that prevails even in the denominationally diverse audiences at many secular semi-public and <WSD>public</WSD> occasions in the United States ; and it is evidenced in the prayers offered , in the frequent religious allusions , and in the confirmation of points on religious grounds . 
Meaning of the word marked with <WSD> tags:  not private; open to or concerning the people as a whole