Inception/ɪnˈsepʃn/ Definition 1 of 2Pro Tip 1/3Time Span Inception refers to a precise starting point, not a duration. The technology's inception can be traced to a single event. Pro Tip 2/3Figurative Use Inception can be used metaphorically to express the birth of ideas. The inception of his brilliant idea happened during the shower. Pro Tip 3/3Historical Moments Use 'inception' for beginnings of historical significance or milestones. Since its inception, the internet has transformed society.