Answer and Explanation:
Vivid words and phrases are used to express the same meaning of a common word or phrase with more impact and strength than using conventional words or phrases in a writing, an essay or a speech. We use them to express our ideas accurately and build more prominent influence in the public.
The answer, in this case, would be 'We’ll use them in next week’s staff meeting when I announce our exciting new corporate merger.'
'Announce' is a synonym of 'introduce' or 'present,' while 'merger' would be the equivalent to 'union' or 'combination' of two parts. This is a case in which the speaker changes the way their message is conveyed by using vivid and rich words to enhance their discourse.