Letters that make macro instruction
s, a, o, n, c, m, r, t, i, u are letters that make 'macro instruction'
Words within macro instruction
mac, CRO, MA, ti, INS, ma, AC, Ro, mA, macro, on, inst, in, ruction, instruction, CT, IN, Io, ion, Ac, Cr, In, Ru, Ti, instruct are words within 'macro instruction'