An information providing device presenting a first and a second word respectively extracted from a first and a second word group includes: a first and a second memory unit respectively storing the first and the second word group; a word extraction unit extracting a word from the second word group as the second word; a sound collection unit collecting a voice signal; and a voice recognition unit performing voice recognition on the collected voice signal, wherein the first memory unit stores a word group of a discussion theme in the first word group; the second memory unit stores a word group corresponding to the first word in the second word group, and the word extraction unit stores a new word in the second word group based on a voice recognition result of content spoken by a speaker at a meeting where the first word and the second word are presented.