Sentence:  Other global taboos, such as sex and suicide, <WSD>manifest</WSD> themselves widely online, with websites offering suicide guides and Hot XXX Action seconds away at the click of a button. The UK government will come under pressure to block access to pornographic websites this year when a committee of MPs publishes its report on protecting children online. 
Meaning of the word marked with <WSD> tags:  To show plainly; to make to appear distinctly, usually to the mind; to put beyond question or doubt; to display; to exhibit.