Adenoid rhymes with:
paranoid, paranoid, vescinoid, ackroyd, alkaloid, amyloid, android, asteroid, aykroyd, boothroyd, celluloid, corticosteroid, hemorrhoid, holroyd, mongoloid, nedlloyd, oldroyd, ovoid, paranoid, polaroid, rheumatoid, rhizoid, sinusoid, spheroid, unalloyed, vescinoid
Adenoid sounds like:
adamant, admit, admitted, atonement, attained, attainment, attend, attended, attendee, attenuate, attenuated, attuned, auditioned, authement, automata, automate, automated