Conference
Part of speech: noun
Definition: A multilateral diplomatic negotiation. A formalized event where scientists present their research results in speeches, workshops, posters or by other means. An event organized by a for-profit or non-profit organization to discuss a pressing issue -- like a new product, market trend or government regulation -- with a range of speakers.
Forum
Part of speech: noun
Definition: A place for discussion.A gathering for the purpose of discussion.A form of discussion involving a panel of presenters and often participation by members of the audience.An Internet message board where users can post messages regarding one or more topics of discussion.