WordaeroMeaningthe airPart of speechnounPronunciationCourseHardcore EsperantoLessonLesson 24Usages of aeroKiam ni malfermis la pordon, malvarma aero eniris, kaj ni sentis densan fumon el la najbara apartamento.When we opened the door, cold air came in, and we sensed thick smoke from the neighboring apartment.