Letters that make infrared frequency
a, d, e, f, n, c, r, i, q, u, y are letters that make 'infrared frequency'
Words within infrared frequency
eq, re, frequency, are, ar, en, Red, ED, rare, red, infrared, infra, in, RA, AR, IN, NC, Ra, Re, Ar, Fr, In are words within 'infrared frequency'