The "escape" character (ESC, code 27), for example, was intended originally to allow sending of other control characters as literals instead of invoking their meaning, an "escape sequence".
ðə "ɛskˈeɪp" kˈæɹɪktɚ ˌiːˌɛssˈiː, kˈoʊd twˈɛnti sˈɛvən, fɔːɹ ɛɡzˈæmpəl, wʌz ɪntˈɛndᵻd ɚɹˈɪdʒɪnəli tʊ ɐlˈaʊ sˈɛndɪŋ ʌv ˈʌðɚ kəntɹˈoʊl kˈæɹɪktɚz æz lˈɪɾɚɹəlz ɪnstˈɛd ʌv ɪnvˈoʊkɪŋ ðɛɹ mˈiːnɪŋ, æn "ɛskˈeɪp sˈiːkwəns".