It is to invite someone to speak a few words at the meeting or event, some of which are speeches by the host, some of which are speeches by leaders, and some of which are speeches by guests, to show that the meeting or event is solemn, warm, and atmosphere. With "address", the language is required to be regular and standard, with strong charm; With "address", you can speak freely and appropriately without wrinkles. Now no one cares whether to use "speech" or "speech". It doesn't matter whether they are universal.
