for their though questions and careful comments. This is a much better work because of them.I owe special thanks to Eliot Michaelson, my sponsor during my visit to King's College London. Without our discussions, chapter 3 would not exist. Always thoughtful and always insightful, he reminded me how exciting philosophy can be.Thanks also to Emma Borg, who so kindly found the time to talk about polysemy with me. She is the best.Without my friends Lucas Grecco, Lucas Miotto, Leonardo Soutello and Vinicius Carvalho, graduate school would have been much tougher. Thanks for always being there for me.Many thanks to FAPESP -São Paulo Research Foundationfor always supporting my work (grants #2015/26344-3 and #2019/15591-0). In such dark times for science in Brazil, FAPESP shines even brighter.Thanks also to Alexandra and LG. I cannot thank my mother enough. Her love and support throughout this whole journey were unconditional. I can only hope to be a fraction of the teacher she was and the person she is.Finally, thanks to Gabriela, for bringing life into my life.