Letters that make high-level language
a, e, g, l, n, h, i, u, v are letters that make 'high-level language'
Words within high-level language
el, LAN, language, age, hi, AN, la, Ag, ANG, lev, ng, EL, level, Eve, eve, high, high-level, GU, eV, HI, LA, LE, NGU, Ge, La, Ig are words within 'high-level language'