thirdly (adverb)

1. Thirdly, we need to consider the placement of windows for optimal natural lighting in the house design.

2. Firstly, I made a sandwich. Secondly, I cried because nobody sang 'Happy Birthday' to it. And thirdly, I ate it.

3. Thirdly, the young sorceress unleashed her most powerful spell, enveloping the battlefield in a shimmering shield of protection.

4. During the American Civil War, the Battle of Gettysburg was a turning point for the Union forces. Thirdly, General Pickett's Charge resulted in heavy Confederate casualties.