Threading rhymes with:
breading, dreading, reading, redding, retreading, shredding, spreading, treading, bedding, beheading, breading, dreading, heading, hedding, kaeding, reading, redding, retreading, shedding, shredding, sledding, spreading, treading, wedding
Threading sounds like:
tardiness, tartness, teradyne's, thirteen's, thorton's, threatening, threatens, thwarting, tiredness, trading, trading's, tradings, traditions, treading, treating, triton's, trotting