This is indeed a glossary with samples and should be transcribed according to the rules of Section 21.6.5 of Braille Formats. Entry words will be in cell 5. The entry word includes the pronunciation. If you prefer, the Spanish entry word could be a separate cell 5 heading - but it could also just continue after the pronunciation of the English entry word. Personally, I would then make the definitions blocked paragraphs with Example as a cell 7 heading and the diagrams or equations following that. Another option would be to make the definitions 1-5 with the Examples 3-5 (and then the diagrams or displayed equations in the appropriate formats).