Outgrows rhymes with:
grose, grows, bro's, brose, crose, crow's, crows, froze, grose, grows, kroes, kroeze, monroe's, pro's, pros, pros', prose, roes, roh's, rohs, rose, row's, rowe's, rowes, rows, stavros, tarots, throes, throws
Outgrows sounds like:
odekirk, odgers, outcries, outscores, outsource, outsources