Letters that make reduplication
a, o, d, e, l, n, p, c, r, t, i, u are letters that make 'reduplication'
Words within reduplication
plica, re, ti, IC, at, Red, ED, duplication, red, up, on, li, ic, plication, cat, CAT, CA, cation, Io, ion, Re, At, Ca, Li, Ti are words within 'reduplication'