We don't have synonyms for popularising yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are popularizing, polarising and popular song.
(v) :
(transitive, communication) To present information in a form less difficult for the general public to understand or enjoy, especially by excluding details and jargon found in technical or academic publications.
(v) :
(transitive, communication) To present information in a form less difficult for the general public to understand or enjoy, especially by excluding details and jargon found in technical or academic publications.