Definition of "aspiration"

aspiration¹

/ˌæspəˈɹeɪʃən/

noun
countable and uncountable, plural aspirations
1. The act of aspiring or ardently desiring; an ardent wish or desire, chiefly after what is elevated or spiritual (with common adjunct adpositions being to and of).
  Quotations
  TfL retains aspirations to further increase frequency on the ELL [East London Line] to 24tph, which would require a switch from conventional signalling to a digital railway solution involving automatic train operation on the core section.
  2019 October, “Funding for 20tph East London Line service”, in Modern Railways, page 18

aspiration²

noun
countable and uncountable, plural aspirations
1. The action of aspirating.
2. (phonetics) A burst of air that follows the release of some consonants.